2011 Thermo Fisher Scientific Inc. All rights reserved.

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2 2011 Thermo Fisher Scientific Inc. All rights reserved. These operating instructions are protected by copyright. Rights resulting thereof, particularly reprint, photomechanical or digital postprocessing or reproduction, even in part, are only allowed with the written consent of Thermo Electron LED GmbH. This regulation does not apply to reproductions for in-plant use. The contents of this operating instructions manual may change at any time and without any prior notice. In case of conflicting translations into foreign languages the German-language version of these operating instructions shall be binding. Trademarks Heratherm is a registered trademark of Thermo Scientific. Thermo Scientific is a brand owned by Thermo Fisher Scientific, Inc. All other trademarks mentioned in the operating instructions are the exclusive property of the respective manufacturers. Thermo Fisher Scientific Robert-Bosch-Straße 1 D Langenselbold Germany Thermo Electron LED GmbH is an affiliate to: Thermo Fisher Scientific Inc. 81 Wyman Street Waltham, MA USA Thermo Fisher Scientific Inc. provides this document to its customers with a product purchase to use in the product operation. This document is copyright protected and any reproduction of the whole or any part of this document is strictly prohibited, except with the written authorization of Thermo Fisher Scientific Inc. The contents of this document are subject to change without notice. All technical information in this document is for reference purposes only. System configurations and specifications in this document supersede all previous information received by the purchaser. Thermo Fisher Scientific Inc. makes no representations that this document is complete, accurate or errorfree and assumes no responsibility and will not be liable for any errors, omissions, damage or loss that might result from any use of this document, even if the information in the document is followed properly. This document is not part of any sales contract between Thermo Fisher Scientific Inc. and a purchaser. This document shall in no way govern or modify any Terms and Conditions of Sale, which Terms and Conditions of Sale shall govern all conflicting information between the two documents.

3 C Contents Chapter 1 Safety Notes Basic Operating Precautions Operational Safety Rules Warranty Explanation of Safety Information and Symbols Safety Notes and Symbols Used Throughout These Operating Instructions Additional Symbols for Safety Information Symbols on the Oven Intended Purpose of the Oven Correct Use Incorrect Use Standards and Directives Chapter 2 Delivery of the Oven Packaging Acceptance Inspection Scope of Supply Chapter 3 Installation Ambient Conditions Intermediate Storage Room Ventilation Use with Air Exhaust Systems Space Requirements Transport Stacking Kit Installing the Stacking Feet Installing the Stacking Adapter Installing the Anti-tilt Anchor Chapter 4 Product Description Heratherm OGH Series Oven Overview Heratherm OGH-S Series Oven Overview Heratherm OMH Series Oven Overview Heratherm OMH-S Series Oven Overview Safety Devices Operating Environment Door Switch Sensing and Control System Data Communications & Alarm Interface AC Power Socket Thermo Scientific Heratherm i

4 Contents Fuses Work Space Components Inner Chamber Product Options Door Fitted with Viewing Windows and Workspace Lighting Tube Access Ports Chapter 5 Start-up Installing the Shelf System Initial installation Installing the Shelving Preparing the Work Space Installation or Removal of the Support Rails (OMH Series and OMH-S Series only) Installing and Uninstalling the Rear Air Baffle (OMH Series and OMH-S Series only) Installing and Uninstalling the Lateral Air Baffles (OGH Series and OGH-S Series only) Installing the Shelf Support Brackets Installing the Wire-mesh Shelves Levelling the Oven Connecting Power Connection to the Power Supply Source Connecting the RS-232 Interface Wiring the Alarm Contact Chapter 6 Operation Preparing the Oven Starting Operation Chapter 7 Handling and Control Powering Up Switching the Oven Off / Powering Down Temperature Set Value Timer Setting a Fixed-time On or Off Timer Setting a Weekly Timer Stopping a Timer Boost Fan Damper Settings Error Log Calibration Date and Time Temperature Display Unit Process Protection Program Preferences Configuration Programming End of Program ECO Convenience Program Preparing the Oven for the Eco Convenience Program ii Heratherm Thermo Scientific

5 Contents Instructions Chapter 8 Shut-down Shutting the Oven Down Chapter 9 Cleaning and Disinfection Cleaning Cleaning exterior surfaces Wipe / Spray Disinfection Preparing the manual wipe/spray disinfection Predisinfection Chapter 10 Maintenance Inspections and checks Service Intervals Preparing Temperature Calibration Comparison Measurement Procedure Temperature Calibration Procedure Replacing the Door Seal Replacing the Power Cord Returns for Repair Chapter 11 Disposal Overview of Materials Used WEEE Conformity Chapter 12 Error Codes Chapter 13 Technical Data Chapter 14 Spare Parts and Accessories Chapter 15 Device Log Chapter 16 Contact Thermo Scientific Heratherm iii

6 Contents iv Heratherm Thermo Scientific

7 L List of Figures Figure 3-1 Oven Dimensions and Required Clearance Figure 3-2 Lift Points Figure 4-1 Heratherm OGH Series Front View Figure 4-2 Heratherm OGH Series Rear View Figure 4-3 Heratherm OGH-S Front View Figure 4-4 Heratherm OGH-S Rear View Figure 4-5 Heratherm OMH Series Front View Figure 4-6 Heratherm OMH Series Rear View Figure 4-7 Heratherm OMH-S Front View Figure 4-8 Heratherm OMH-S Rear View Figure 4-9 Sensor Mounting Location - OGH Series Figure 4-10 Sensor Mounting Location - OMH Series Figure 4-11 Signal Interfaces and Power Socket Figure 4-12 Shelf System - OGH Series and OGH-S Series Oven Figure 4-13 Shelf System - OMH Series and OMH-S Series Oven Figure 4-14 Viewing Package Front View Figure 4-15 Tube Access Ports Figure 5-1 Sliding the Retaining Spring into the Support Rail Figure 5-2 OGH and OGH-S Series - Installing the Shelving Figure 5-3 OMH and OMH-S Series - Installing the Shelving Figure 5-4 Support Rail Installation Figure 5-5 Installing the Rear Air Baffle Figure 5-6 Removing the Bottom Panel Figure 5-7 Bottom Panel Removed Figure 5-8 Removing the Lateral Air Baffle Figure 5-9 Shelf Support Bracket Installation Figure 5-10 Wire-mesh Shelf Figure 5-11 AC Power Supply Socket Figure 5-12 Alarm Relay Connection Example Figure 7-1 Control Panel for Heratherm OGH Series, OMH Series, OGH-S Series and OMH-S Series Ovens Figure 10-1 Door seal replacement (example showing OMH Series oven) Thermo Scientific Heratherm i

8 List of Figures ii Heratherm Thermo Scientific

9 1 Safety Notes Basic Operating Precautions These operating instructions describe Heratherm ovens. Heratherm ovens have been manufactured to the latest state of the art and been tested thoroughly for flawless functioning prior to shipping. However, the oven may present potential hazards, particularly if it is operated by inadequately trained personnel or if it is not used in accordance with the intended purpose. Therefore, the following must be observed for the sake of accident prevention: Heratherm ovens must be operated by adequately trained and authorized professional personnel. Heratherm ovens must not be operated unless these operating instructions have been fully read and understood. The present operating instructions, applicable safety data sheets, plant hygiene guidelines and the corresponding technical rules issued by the operator shall be used to create written procedures targeted at personnel working with the subject matter device, detailing: the safety precautions to be taken when processing specific agents, the measures to be taken in case of accidents. Repair work on the oven must be carried out only by trained and authorized expert personnel. The contents of these operating instructions are subject to change at any time without further notice. Concerning translations into foreign languages, the German version of these operating instructions is binding. Keep these operating instructions close to the oven so that safety instructions and important information are always accessible. Should you encounter problems that are not detailed adequately in these operating instructions, please contact Thermo Electron LED GmbH immediately for your own safety. Thermo Electron LED GmbH Heratherm 1-1

10 Safety Notes Operational Safety Rules Operational Safety Rules The following rules must be heeded when working with Heratherm ovens: Observe the sample weight limits specified for your Heratherm oven as a whole and its shelving in particular; see Technical Data on page 13-1 Do not load the bottom of the interior workspace to avoid the risk of overheating any samples placed there. Arrange the samples evenly throughout the work space, making sure not to place them too closely to the interior walls to ensure a uniform temperature distribution. Do not load your Heratherm oven with substances that exceed the capabilities of the available lab apparatus and Personal Protection Equipment to provide sufficient degrees of protection to users and third parties. Check the door seal once a week for proper sealing performance and possible damage. Do not process any samples containing hazardous chemical substances that may be released into the ambient air through defective seals or may cause corrosion or other defects on parts of the Heratherm oven. Warranty Thermo Electron LED GmbH warrants the operational safety and functions of the Heratherm ovens only under the condition that: the oven is operated and serviced exclusively in accordance with its intended purpose and as described in these operating instructions, the oven is not modified, only original spare parts and accessories that have been approved by Thermo Electron LED GmbH are used (third-party spares without Thermo Electron LED GmbH approval void the limited warranty), inspections and maintenance are performed at the specified intervals, an installation verification test is performed on commissioning the oven for the first time and repeated after each inspection and repair activity. The warranty is valid from the date of delivery of the oven to the customer. 1-2 Heratherm Thermo Electron LED GmbH

11 Safety Notes Explanation of Safety Information and Symbols Explanation of Safety Information and Symbols Safety Notes and Symbols Used Throughout These Operating Instructions Indicates a hazardous situation which, if not avoided, will result in death or serious injuries. Indicates a hazardous situation which, if not avoided, could result in death or serious injuries. Indicates a situation which, if not avoided, could result in damage to equipment or property. Is used for useful hints and information regarding the application. Thermo Electron LED GmbH Heratherm 1-3

12 Safety Notes Explanation of Safety Information and Symbols Additional Symbols for Safety Information Wear safety gloves! Wear safety goggles! Harmful liquids! Electric shock! Hot surfaces! Fire hazard! Explosion hazard! Suffocation hazard! 1-4 Heratherm Thermo Electron LED GmbH

13 Safety Notes Intended Purpose of the Oven Symbols on the Oven Observe operating instructions Mark of conformity USA/Canada RS 232 interface Fuse, 2 Ampere slow-blow PT 100 Sample Sensor - accessory part 120 Volts AC power socket (60 l devices only) Alarm contact Intended Purpose of the Oven Correct Use Heratherm ovens are laboratory devices for heating applications, equipped with precision temperature control. They are designed for heat treating samples or materials at operating temperatures between 50 C (122 F) and 330 C (626 F), including - for example, drying, ageing, analyzing, decomposing, burn-in, oxidizing, reducing, and preheating. Heratherm ovens have been designed for installation and operation in the following environments: heat treatment; drying of material. Thermo Electron LED GmbH Heratherm 1-5

14 Safety Notes Standards and Directives Incorrect Use To avoid the risk of explosion do not load the oven with tissue, material, or liquids that: are easily flammable or explosive; release vapor or dust that forms combustible or explosive mixtures when exposed to air; release poisons; create a humid atmosphere; release dust; exhibit exothermic reactions; are pyrotechnical substances; exceed the specified hurdle load. Standards and Directives The oven complies with the following standards and guidelines: IEC EN , IEC EN Low Voltage Directive 2006/95/EC EMC Directive 2004/108/EC Additionally, the oven is in compliance with many other international standards, regulations and directives not listed here. Should you have any questions regarding compliance with national standards, regulations and directives applicable for your country, please contact your Thermo Fisher Scientific sales organization. 1-6 Heratherm Thermo Electron LED GmbH

15 2 Delivery of the Oven Packaging Heratherm ovens are delivered in a rugged packaging box. All packaging materials can be separated and are reusable: Packaging materials Packaging carton: Foam elements: Pallet: Packaging film: Packaging ribbons: Recycled paper Styrofoam (CFC-free) Chemically untreated wood Polyethylene Polypropylene Acceptance Inspection After the oven has been delivered, check the delivery immediately for: completeness, possible damage. If components are missing or damage is found on the oven or the packaging, in particular damage caused by humidity and/or water, please notify the carrier as well as Technical Support immediately. Risk of injury Should sharp edges have formed in damaged areas or elsewhere on the device, take all necessary precautions to protect personnel handling the oven. For example, have them wear protective gloves and other personal protection equipment. Thermo Scientific Heratherm 2-1

16 Delivery of the Oven Scope of Supply Scope of Supply Ovens Quantity of components supplied (pieces) OGH Series OGH-S Series Wire-mesh shelf 2 2 Support rail for shelf 0 2 Shelf support 4 4 Power cord 1 1 Connector, potential-free contact 1 1 Clip springs 0 2 Operating manual 1 1 Short reference guide 1 1 OMH-S Series OMH Series 2-2 Heratherm Thermo Scientific

17 3 Installation Ambient Conditions The oven must only be operated in a location that meets all of the ambient condition requirements listed below: Location Requirements Draft-free and dry indoor location. Dust loading should be in keeping with the degree of contamination, which is Pollution Degree 2 according to IEC EN Using the oven in an atmosphere with electrically conductive dust is prohibited. The minimal distance to adjacent surfaces must be observed on all sides (see section Space Requirements on page 3-3). The operating room must be equipped with appropriate ventilation. Solid, level, fire-proof surface and no flammable materials opposite to the rear panel of the oven. Vibration-proof substructure (floor stand, lab table) capable of bearing the dead weight of the oven and its accessories (particularly if two devices are stacked). The ovens have been designed for an operating height of up to 2000 m above sea level. Ambient temperature range from 18 C to 32 C / 64.4 F to 89.6 F. Relative humidity up to 80% (maximum; preferably 60-70%), non condensing. Should condensation exist, wait until the moisture has evaporated completely before connecting the oven to a power source and powering up. Avoid direct exposure to sunlight. Devices that produce excessive amounts of heat must not be placed near the oven. To avoid drying operation without an appropriate fresh air supply make sure that the air inlet (which may be equipped with an optional fresh air filter) is not obstructed or blocked by any adjacent objects. Power line voltage variations must not exceed ±10 % of the nominal voltage. Transient overvoltages must not exceed the values usually encountered throughout the power supply network. The nominal transient overvoltage level shall be the surge withstand voltage according to overvoltage category II of IEC Thermo Scientific Heratherm 3-1

18 Installation Intermediate Storage Place the oven on a floor stand (option; to be ordered separately), never on the lab floor. Consider installing one dedicated upstream circuit breaker per oven to avoid multiple device failures in case of an electrical fault. Intermediate Storage When the oven is placed in intermediate storage, which is permissible for a maximum of four weeks, make sure that the ambient temperature is between 20 C to 60 C (68 F to 140 F) and the maximum relative humidity does not exceed 90%, non-condensing. Room Ventilation Heat dissipating from the oven during continuous operation may cause a change in the room climate. Therefore, the oven must only be installed in rooms with sufficient ventilation. Do not install the oven in room recesses without ventilation. When several devices are to be placed in the same room, additional ventilation may have to be provided as necessary. To avoid any impact of the heat dissipated by the oven on the ambient climate the room must be vented by means of a laboratory-grade ventilation system that complies with applicable local and national health and safety regulations and has sufficient capacity. If excessive temperatures tend to occur in the operating room, be sure to provide a thermal protection means that cuts out the power supply to mitigate the impact of overtemperature scenarios. Use with Air Exhaust Systems When the oven is connected to an air exhaust system be sure to adjust its air flow so the temperature distribution pattern throughout the oven's workspace remains unchanged and precision temperature control is maintained. Also, be sure to interlock the oven and its exhaust system so both start and run at the same time. The oven may be unable to overcome the extra flow resistance introduced by the idle air exhaust system, which may cause the exhaust air to be vented into the surrounding lab room. Before using existing piping in the building to exhaust hot air from the oven, be sure that such exhaust piping is made of heat-resistant material, so it will not overheat, melt and/or cause a fire. The oven s outer surfaces and its air exhaust piping may become hot, so be sure to maintain the proper spacing from walls and ceilings specified by local building codes and/or fire protection regulations. 3-2 Heratherm Thermo Scientific

19 Installation Space Requirements Mark hot exhaust air piping with appropriate hot surface warning signs or restrict access to such piping altogether to avoid the risk of injury through contact with hot surfaces. Space Requirements When installing the oven, make sure that the installation and supply connections remain freely accessible. The specified side clearances represent minimum distances. Figure 3-1 Oven Dimensions and Required Clearance Table 3-1 Heratherm Oven Dimensions Type A (mm/inch * ) B (mm/inch) C (mm/inch) D** (mm/inch) OMH / / / / 21.3 OMH / / / / 25.6 OMH / / / / 25.6 OMH 60-S 530 / / / / 21.3 OMH 100-S 640 / / / / 25.6 OMH 180-S 640 / / / / 25.6 * Dimensions in inches are rounded equivalents specified for information only. Depth of handle /display (66 mm/2.6 in) not included in overall depth specified; height of adjustable feet (36 mm/1.4 in) not included in overall height specified. **Dimension D specifies the required clearance for opening the door by an angle of 90 degrees. Thermo Scientific Heratherm 3-3

20 Installation Transport Table 3-2 Required Clearances E (mm/inch) F (mm/inch) G (mm/inch) H (mm/inch) 80 / / / / 12 Transport For transport, do not lift the oven using the doors or components attached to the oven as lift points. Figure 3-2 Lift Points Heavy loads! Lift with care! To avoid injury through physical strain, such as strain traumata and slipped discs, do not attempt to lift the oven alone! To avoid injury through dropped loads, be sure to wear Personal Protection Equipment, such as safety shoes, when lifting the oven. To avoid crushing your fingers or hands (particularly in a closing door) or damaging the oven, do not use any other lift points than those indicated in the illustration above. 3-4 Heratherm Thermo Scientific

21 Installation Stacking Kit Stacking Kit Material Number Description Stacking adapter Heratherm 60L Stacking adapter Heratherm 100L Stacking adapter Heratherm 180L Scope of Delivery 1 stacking adapter 1 anti-tilt anchor 1 plastic bag with 2 stacking feet and 2 M4x16 Torx screws. Required Tools Slotted screwdriver 5,5x100 or Torx screwdriver 20x100. Installing the Stacking Feet 1. Remove the left and right blank plugs at the top blank. 2. Install the stacking feet with the enclosed screws using a slotted or Torx screwdriver. Thermo Scientific Heratherm 3-5

22 Installation Installing the Stacking Adapter Installing the Stacking Adapter 1 Stacking adapter HTM 60 2 Stacking adapter HTM Stacking adapter HTM Anti-tilt anchor Stack as follows when using a stacking adapter (numbers denote oven volumes in liters): for 60/100/180 on 180 use stacking adapter Heratherm 180L, for 60/100 on 100 use stacking adapter Heratherm100L, for 60 on 60 use stacking adapter Heratherm 60L. To prevent the top oven from slipping and dropping down, the following requirements must be fulfilled before devices may be stacked: Only two units may be stacked together. When stacking devices with the same type of enclosure, yet with a different footprint the device with the smaller footprint must be placed on top of the one with the larger footprint at all times. The bottom device must be correctly levelled. Be sure to use the appropriate stacking adapter. The levelling feet on the top device must be screwed in all the way. The levelling feet of the top device must be aligned with and placed exactly on the stacking pads of the stacking adapter. 3-6 Heratherm Thermo Scientific

23 Installation Installing the Anti-tilt Anchor The anti-tilt anchor must be installed on the top device. Installing the Anti-tilt Anchor The anti-tilt anchor secures the top device in a stack to a solid part of a building. The anti-tilt anchor is to be mounted on the side opposite of the door hinges. Bend the fixing tabs of the anti-tilt anchor up on one side and down on the other by an angle of approx Do not use this position if the door is hinged on this side. Right-hand hinges represent the standard configuration. 2. Preferred position. 3. Alternative position. Do not use if the door is hinged on this side. Remove the bracket screws. Use the preferred position, if possible. Fix the anti-tilt anchor with the bracket side down to the unit. Position the unit with the anti-tilt anchor to in an angle of approx. 90 +/- 20%. Take care that the stacking feet of the unit are still in correct place on the lower unit or on the stacking adapter. Fix the anti-tilt anchor to a solid part of the building. Unsafe part of the building! Install the anti-tilt anchor to a solid part of the building, which is able for shoring loads. The installation has to be carried out by qualified personnel only. The connection to the building must be carried out with appropriate screws and dowels according to the consistence of the building part. Thermo Scientific Heratherm 3-7

24 Installation Installing the Anti-tilt Anchor Additionally, the following caution notes must be heeded at all times: Risk of overheating with stacked devices To avoid the risk of electrical components and the outer enclosure overheating or temperature control failing due to insufficient ventilation, do not exceed the specified stacking height! Risk of tipping and dropping of stacked devices You should be aware at all times that stacked devices do not form a stable unit, even when the stacking pads and frames are used correctly. The top device may tip over and drop down when being transported in a stack. To avoid injury to persons and damage to equipment, do not attempt to move stacked devices as a unit! Separate and move each device one by one, then restack them. Condensation forming while operating stacked devices If stacked devices are operated at an ambient temperature of more than 26 C (79 F), temperature control may be adversely affected on the top device while the decontamination routine is running on the bottom device. To prevent any impairment of temperature control, make sure that the space between and around any two stacked devices is well-ventilated for optimum heat removal. 3-8 Heratherm Thermo Scientific

25 4 Product Description This section describes Heratherm advanced protocol ovens for high-end laboratory applications, which are available in four different versions distinguished by convection method and safety level: Heratherm OGH Series advanced protocol gravity convection ovens (see Heratherm OGH Series Oven Overview on page 4-1); Heratherm OGH-S Series advanced protocol security gravity convection ovens (see Heratherm OGH-S Series Oven Overview on page 4-3); Heratherm OMH Series advanced protocol mechanical convection ovens (see Heratherm OMH Series Oven Overview on page 4-5); Heratherm OMH-S Series advanced protocol security mechanical convection ovens (see Heratherm OMH-S Series Oven Overview on page 4-7). Heratherm OGH Series Oven Overview Heratherm OGH Series (OGH is brief for Oven with Gravity convection) advanced protocol gravity convection ovens come equipped with the following features: high-precision work space temperature control, adjustable in steps of one degree up to 330 C/626 F; boost feature for speed-heating a cold and empty oven; an electrically driven damper for venting the work space, adjustable on the control panel; countdown, fixed-time, and weekly timers for timed process control; two wire-mesh shelves; user program support for automating process control; an access port for tubing, sensor leads, etc. Thermo Scientific Heratherm 4-1

26 Product Description Heratherm OGH Series Oven Overview The individual features of OGH Series ovens are shown in Figure 4-1 and Figure 4-2 below. Figure 4-1 Heratherm OGH Series Front View [1] Outer door [2] Door latch cut-out [3] Door latch and handle [4] Door hinge, lower [5] Levelling foot [6] Nameplate [7] Air baffle, bottom [8] Air baffle, side [9] - [10] Door hook catch [11] Wire mesh shelf [12] Support rail for wire mesh shelf [13] Door seal [14] Stacking pad [15] Temperature sensor [16] Exhaust air tube [17] Access port 4-2 Heratherm Thermo Scientific

27 Product Description Heratherm OGH-S Series Oven Overview 11 Figure 4-2 Heratherm OGH Series Rear View [1] Door latch and handle [2] Control panel [3] Stacking pad [4] Access port slide [5] Access port [6] Spacer [7] Air outlet aperture [8] - [9] Air inlet flap, with electrical drive [10] - [11] Electronics compartment [12] Levelling foot Heratherm OGH-S Series Oven Overview Heratherm OGH-S Series (OGH-S is brief for Oven with Gravity convection with exacting Safety requirements) advanced protocol security natural convection ovens come equipped with the features also found in OGH Series devices, including: high-precision work space temperature control, adjustable in steps of one degree up to 330 C/626 F; boost feature for speed-heating a cold and empty oven; an electrically driven damper for venting the work space, adjustable on the control panel; countdown, fixed-time, and weekly timers for timed process control; two wire-mesh shelves; an access port for tubing, sensor leads, etc.; user program support for automating process control. Additionally, OGH-S Series ovens offer the following extra functionality: a lockable door to secure a running process against unauthorized access; Thermo Scientific Heratherm 4-3

28 Product Description Heratherm OGH-S Series Oven Overview a door switch and indicator on the control panel to indicate that the door is open; a sample protection feature that reduces the oven s work space temperature to a safe level when the internal controller is subject to an error condition; monitoring of lower temperature; preparation for sample sensor accessory; ECO drying support (requires optional sample sensor). The individual features of OGH-S Series ovens are shown in Figure 4-3 and Figure 4-4 below. Figure 4-3 Heratherm OGH-S Front View [1] Outer door [2] Door switch [3] Door latch and handle [4] Door hinge, lower [5] Levelling foot [6] Nameplate [7] Air baffle, bottom [8] Air baffle, side [9] - [10] Door hook catch [11] Wire-mesh shelf [12] Support rail for wire-mesh shelf [13] Door seal [14] Stacking pad [15] Temperature sensor [16] Exhaust air tube [17] Access port 4-4 Heratherm Thermo Scientific

29 Product Description Heratherm OMH Series Oven Overview 8 11 Figure 4-4 Heratherm OGH-S Rear View [1] Door latch and handle [2] Control panel [3] Stacking pad [4] Access port slide [5] Access port [6] Spacer [7] Air outlet aperture [8] Sample sensor connection [9] Air inlet, with electrical drive [10] - [11] Electronics compartment [12] Levelling foot Heratherm OMH Series Oven Overview Heratherm OMH Series (OMH is brief for Oven with Mechanical convection) advanced protocol mechanical convection ovens come equipped with the following features: high-precision work space temperature control, adjustable in steps of one degree up to 330 C/626 F; boost feature for speed-heating a cold and empty oven; a variable-speed fan for optimizing temperature uniformity throughout the work space; an electrically driven damper for venting the work space, adjustable on the control panel; countdown, fixed-time, and weekly timers for timed process control; two wire-mesh shelves; an access port for tubing, sensor leads, etc. user program support for automating process control. Thermo Scientific Heratherm 4-5

30 Product Description Heratherm OMH Series Oven Overview The individual features of OMH Series ovens are shown in Figure 4-5 and Figure 4-6 below. Figure 4-5 Heratherm OMH Series Front View [1] Outer door [2] Door latch cut-out [3] Door latch and handle [4] Door hinge, lower [5] Levelling foot [6] Nameplate [7] Air baffle, top piece [8] Support rail for wire mesh shelf [9] - [10] Door hook catch [11] Wire mesh shelf [12] Shelf support [13] Door seal [14] Stacking pad [15] Spring for support rail [16] Temperature sensor [17] Exhaust air tube [18] Access port 4-6 Heratherm Thermo Scientific

31 Product Description Heratherm OMH-S Series Oven Overview Figure 4-6 Heratherm OMH Series Rear View [1] Door latch and handle [2] Control panel [3] Stacking pad [4] Access port slide [5] Access port [6] Spacer [7] Air outlet aperture [8] Fan [9] Air inlet, with electrical drive [10] - [11] Electronics compartment [12] Levelling foot Heratherm OMH-S Series Oven Overview Heratherm OMH-S Series (OMH-S is brief for Oven with Mechanical convection for High-end laboratory applications with exacting Safety requirements) advanced protocol security mechanical convection ovens come equipped with the features also found in OMH Series devices, including: high-precision work space temperature control, adjustable in steps of one degree up to 330 C/626 F; boost feature for speed-heating a cold and empty oven; a variable-speed fan for optimizing temperature uniformity throughout the work space; an electrically driven damper for venting the work space, adjustable on the control panel; countdown, fixed-time, and weekly timers for timed process control; two wire-mesh shelves; an access port for tubing, sensor leads, etc.; Thermo Scientific Heratherm 4-7

32 Product Description Heratherm OMH-S Series Oven Overview user program support for automating process control. Additionally, OMH-S Series ovens offer the following extra functionality: a lockable door to secure a running process against unauthorized access; a door switch and indicator on the control panel to indicate that the door is open; a sample protection feature that reduces the oven s work space temperature to the setpoint when the heating control system is subject to an error condition. Monitoring of lower temperature Preparation for sample sensor accessory ECO drying support (requires optional sample sensor). The individual features of OMH-S Series ovens are shown in Figure 4-7 and Figure 4-8 below. Figure 4-7 Heratherm OMH-S Front View [1] Outer door [2] Door switch [3] Door latch and handle [4] Door hinge, lower [5] Levelling foot [6] Nameplate [7] Air baffle, top piece [8] Support rail [9] [10] Door hook catch [11] Wire mesh shelf [12] Shelf support [13] Door seal [14] Stacking pad [15] Spring for air baffle [16] Temperature sensor [17] Exhaust air tube [18] Access port 4-8 Heratherm Thermo Scientific

33 Product Description Heratherm OMH-S Series Oven Overview 13 Figure 4-8 Heratherm OMH-S Rear View [1] Door latch and handle [2] Control panel [3] Stacking pad [4] Access port slide [5] Access port [6] Spacer [7] Air outlet aperture [8] Fan [9] Air inlet flap, with electrical drive [10] - [11] Electronics compartment [12] Levelling foot [13] Sample sensor connection Thermo Scientific Heratherm 4-9

34 Product Description Safety Devices Safety Devices The oven is equipped with the following safety features: a sample protection feature that safeguards the samples against destruction through overheating in case of contoller failure; an overheat protection cut-out feature that shuts down the oven completely when excessive temperatures occur in the workspace; dual fuses rated at 16 amperes. Operating Environment To ensure undisturbed operation, the ambient temperature in the operating room must be at least 18 C (64.4 F). The heating system controls the temperature in the oven s workspace of 50 C/122 F up to the maximum of 330 C/626 F. Door Switch Heratherm OGH 60/100/180-S and Heratherm OMH 60/100/180-S ovens come with a door switch integrated into the latch mechanism. If the door switch is activated by opening the door, heating operations in the work space are suspended and an icon is illuminated in the display window (see D4 in Figure 7-1 on page 7-1). If the door remains open for more than 30 seconds, a short audible alarm is sounded in addition to the icon in the display window. If the door is left open for more than 10 minutes, an audible alarm is sounded, a door open (E001) alarm message appears in the display and is issued through the RS-232 interface, and the alarm relay is energized. Sensing and Control System The PT 100-type sensor for the control of the work space temperature and for the thermal protection [1] is mounted in the top panel of the work space compartment. Figure 4-9 Sensor Mounting Location - OGH Series 4-10 Heratherm Thermo Scientific

35 Product Description Sensing and Control System Figure 4-10 Sensor Mounting Location - OMH Series The work space temperature sensor provides the inputs to the oven s built-in controller, which continuously compares the measured values to the user-specified set value and adjusts the heaters according to the result. Protect the sensor from mechanical damage. The unit features a thermal protection function that is factory-preprogrammed and not adjustable. It protects the samples in the work space from overheating: Thermal protection kicks in on a brief violation of the upper limit, based on the user-selected temperature set value, automatically reducing the work space temperature to the user-specified set value and allowing the heating process to continue even in case of a controller malfunction. If the thermal protection is activated, the error message (E111) Temperature too high appears in the display window and an audible alarm is sounded. When the user acknowledges the error message, the red alarm icon (D4 in Figure 7-1 on page 7-1) is illuminated and the Temperature Set Value icon (see Table 7-3 on page 7-4) is highlighted by a red border to indicate that thermal protection has kicked in. Thermo Scientific Heratherm 4-11

36 Product Description Data Communications & Alarm Interface Data Communications & Alarm Interface All signal connections are installed in the electrical interface panel at the rear of the oven. RS-232 Interface The RS- 232 interface (left in Figure 4-11 below) may be used to connect ovens to the serial interface port of a computer to allow for the computer-aided acquisition and documentation of major operating parameters (temperature, error codes, etc.). Figure 4-11 Signal Interfaces and Power Socket Alarm Contact AC Power Socket Fuses The oven can be connected to an on-site, external alarm system (such as a private branch telephone exchange, a facility monitoring system, visual or audible alarm indicators; see Wiring the Alarm Contact on page 5-12). For this purpose, the devices come with a pre-wired potential-free alarm contact (see Figure 4-11). The alarm contact is energized whenever an error occurs in an internal control loop or the oven s electrical circuits or hardware. The oven is connected to the AC supply mains via the socket at right in Figure 4-11 above, which accepts a power cord with an IEC standard plug [9]. Two 16 A slow-blow fuses mounted on the oven s main electronic circuit board protect internal circuitry from the impact of excessive power consumption. Fuse replacement The device fuses are not user-serviceable. When the oven exhibits the typical signs of a blown fuse (no response to pressing the On/Off button, control panel remains extinguished, no heating operation), call Customer Service to have the fuses replaced Heratherm Thermo Scientific

37 Product Description Work Space Components Work Space Components Inner Chamber All components of the work space are made of corrosion-resistant stainless steel and have an absolutely smooth and easy-to-clean surface. Any embossings have a large radius. Shelf System The oven is supplied with two wire-mesh shelves. The shelf support rails have an alternating pattern of oblong and round perforations spaced evenly at 30 mm, allowing the shelf support brackets to be inserted without any room for error, yet in a very flexible way to accommodate different heights of sample containers. The shelves have an integrated tilt protection and withdrawal stop. For details on using the shelf system, see the section Start-up on page [1] Retaining spring [2] Air baffle, lateral [3] Shelf support [4] Wire-mesh shelf [5] Air baffle, bottom Figure 4-12 Shelf System - OGH Series and OGH-S Series Oven Thermo Scientific Heratherm 4-13

38 Product Description Product Options [1] Retaining spring [2] Air baffle, rear [3] Shelf support [4] Wire-mesh shelf [5] Support rail Figure 4-13 Shelf System - OMH Series and OMH-S Series Oven Product Options This section describes the options available for the Heratherm heating and drying ovens for high end laboratory applications. Door Fitted with Viewing Windows and Workspace Lighting Heratherm heating and drying ovens may be equipped with a Viewing Package. With devices of 60 and 100 liters workspace volume, this package consists of one viewing window plus workspace lighting, while devices with 180 liters are fitted with two viewing windows and workspace lighting. The workspace lighting is not designed for use as a permanent illumination source, but rather intended to allow brief visual checks of the device s interior. The Viewing Package limits the operating temperature range of the heating and drying oven to 250 C (482 F) Heratherm Thermo Scientific

39 Product Description Tube Access Ports Figure 4-14 Viewing Package Front View [1] Control panel [2] Door latch and handle [3] Levelling foot [4] Nameplate [5] Door hinge, lower [6] Viewing window Tube Access Ports Heratherm heating and drying ovens may be equipped with additional tube access ports in the side and top panels. Available tube access port options are listed in Table 4-1 below. Tabelle 4-1 Tube Access Ports for Heratherm Heating and Drying Ovens (Option) Model Side Panel Mounted Port, dia. in mm OGH and OGH-S 19 or or 58 OMH and OMH-S 24 or or 58 Top Panel Mounted Port, dia. in mm The tube access ports are mounted in fixed locations in the side and top panels (see Figure 4-15). Thermo Scientific Heratherm 4-15

40 Product Description Tube Access Ports Figure 4-15 Tube Access Ports [1] Top panel mounted tube access port [2] Side panel mounted tube access port [3] Sealing cover for side panel mounted tube access port Once the cables, tubes or other conduits have been inserted, the tube access ports must be padded with the heat-resistant fiber pads shipped with the device and the cap must be mounted to seal the port as far as possible. Risk of Burning on Hot Surface The surface around the tube access ports may become extremely hot Heratherm Thermo Scientific

41 5 Start-up Installing the Shelf System The installation of the shelf system does not require any tools. The support rails are secured in place by spring action. Once the shelf support brackets have been inserted into the rails, the wire-mesh shelves can be simply pushed onto their support hooks to complete the installation. Initial installation Heratherm OGH and OGH-S Series ovens have the shelving support rails integrated with the air baffles, which are readily pre-installed when the devices are shipped from the factory. Heratherm OMH and OMH-S Series ovens come with separate support rails, which need to be installed as follows: 1. Peel off the protective foil from the support rails. 2. Push the retaining spring [1] into the guide on the support rail [2], making sure that the locking nub [3] on the retaining spring safely engages with the matching hole in the support rail.. Figure 5-1 Sliding the Retaining Spring into the Support Rail Installing the Shelving The illustrations below show the placement of the shelf system elements. Thermo Electron LED GmbH Heratherm 5-1

42 Start-up Initial installation [1] Retaining spring [2] Air baffle, lateral [3] Shelf support bracket [4] Wire-mesh shelf [5] Air baffle, bottom Figure 5-2 OGH and OGH-S Series - Installing the Shelving [1] Retaining spring [2] Air baffle, rear [3] Shelf support bracket [4] Wire-mesh shelf [5] Support rail Figure 5-3 OMH and OMH-S Series - Installing the Shelving 5-2 Heratherm Thermo Electron LED GmbH

43 Start-up Preparing the Work Space Preparing the Work Space The following work space components should be checked for cleanliness and cleaned prior to use: support rails, shelf support brackets, wire-mesh shelves, work space surfaces, work space seals and gaskets, Disinfection For details about the cleaning of the oven, please refer to the section Cleaning on page 9-1. Installation or Removal of the Support Rails (OMH Series and OMH-S Series only) Figure 5-4 Support Rail Installation The embossings at [2] and [5] act as lateral guides for the support rails, while the embossings at [1] and [6] secure the support rails in place. For the support rails to install correctly the retaining spring [3] must be facing upwards. 1. Place the support rail [4] on the lower embossing [6] and tilt it upwards against the work space side wall so that the rail is positioned over the two embossings at [5] and [2]. Thermo Electron LED GmbH Heratherm 5-3

44 Start-up Preparing the Work Space 2. Clamp the retaining spring [3] behind the upper embossing [1]. 3. To remove the support rails, pull the retaining spring tab down out of the embossing and remove the support rail assembly. Installing and Uninstalling the Rear Air Baffle (OMH Series and OMH-S Series only) Heratherm OMH Series and OMH-S Series ovens are shipped from the factory with an air baffle readily pre-installed at the back wall of the work space (while OGH Series and OGH-S Series ovens do not have this feature). Before the air baffle can be removed from the back wall, the support rails need to be uninstalled as explained further above. Figure 5-5 Installing the Rear Air Baffle 1. Losen the two screws [1] that hold the air baffle to the back wall of the work space. Risk of damage to sensor! To prevent accidental damage, be sure to avoid collision with the sensor when installing or uninstalling panels in the oven s workspace. 2. Grab the two retaining springs [2] at their tabs and pull them downwards out of the embossings, then pull off the rear air baffle. 3. For the rear air baffle to install correctly, the two retaining springs [2] must be facing upwards. Place the air baffle on the lower embossings and tilt it upwards against the back wall of the work space. 4. Clamp the two retaining springs [2] into the upper embossings. 5. Secure the air baffle to the work space back wall by fastening the two screws at [1]. 5-4 Heratherm Thermo Electron LED GmbH

45 Start-up Preparing the Work Space Installing and Uninstalling the Lateral Air Baffles (OGH Series and OGH-S Series only) The following section describes the installation and removal of the lateral air baffles. Figure 5-6 Removing the Bottom Panel 1. Losen the two screws [1] in the bottom panel, then remove the entire bottom panel by lifting it out of its two embossings. Figure 5-7 Bottom Panel Removed 2. Grab the two retaining springs [1] at their tabs and pull them downwards out of the embossings, then pull off the lateral air baffle. Risk of damage to sensor! To prevent accidental damage, be sure to avoid collision with the sensor when installing or uninstalling panels in the oven s workspace. Thermo Electron LED GmbH Heratherm 5-5

46 Start-up Preparing the Work Space Figure 5-8 Removing the Lateral Air Baffle 3. For the lateral air baffles to install correctly, the two retaining springs [1] must be facing upwards. Place the lateral air baffle on the lower embossings and tilt it upwards against the side wall of the work space. 4. Clamp the two retaining springs [1] into the upper embossings. 5. Replace the bottom panel into the embossings and secure it by fastening the two screws at [1]. Installing the Shelf Support Brackets 1. Insert the shelf support brackets [3] into the perforations [1] of the support rail and air baffle and tilt them downwards. Horizontal position of support rails Please note the alternating sequence of round and oblong holes. Be sure to use the correct pair of opposite holes, so the support rails are truly horizontal. 2. Make sure that the two vertical elements [2] of the shelf support bracket butt against the support rail and air baffle. 5-6 Heratherm Thermo Electron LED GmbH

47 Start-up Preparing the Work Space Figure 5-9 Shelf Support Bracket Installation Installing the Wire-mesh Shelves Figure 5-10 Levelling the Oven Wire-mesh Shelf 1. Push the wire-mesh shelf onto the shelf support brackets with the tilt protection devices [1] facing the rear panel of the oven. The tilt protection devices [1] also serve as guides for the wire-mesh shelves. 2. Slightly raise the wire-mesh shelf so that the pull-out stops [2] can slide over the shelf support brackets. 3. Make sure that the shelves and both of their tilt protection devices are free to move over the shelf support brackets. 1. Position a bubble level onto the center shelf. Thermo Electron LED GmbH Heratherm 5-7

48 Start-up Connecting Power 2. Manually adjust the levelling feet until the wire-mesh shelf is horizontally aligned in all directions. Perform the adjustment of the levelling feet from left to right and from rear to front. Connecting Power Electric shock The oven has a class I, protection-earthed enclosure. To minimize the risk of electrical shock, use the AC power cord supplied to connect the oven to a correctly installed and protection-earthed power supply source, with the following features in place for each oven: T 16 A slow-blow fusing B 16 circuit breaker Contact with live electrical components may cause a lethal electric shock. Before connecting the oven to the power supply, check the power cord and the plug for damage. Do not use damaged cables for connecting the oven to the power supply! Benefits of using separate electrical feeders Although several devices may be operated on the same electrical feeder if the rated current is not exceeded, we strongly recommended to provide one feeder with a dedicated upstream circuit breaker per oven to avoid the failure of multiple devices in case of an electrical fault. Connection to the Power Supply Source 1. Before connecting the oven to the power source, check to see if the power supply voltage corresponds with the specifications on the nameplate on the front of the oven. If the voltage (V) and current (A) ratings given are not as required, do not connect the oven to the power source! 2. Make sure the alarm contact remains disconnected at this time. If connected, disconnect it now to avoid a false alarm on the receiving end. You will get back to the alarm contact later on as you work your way through this start-up procedure. 3. Connect the IEC connector to the socket at the rear of the oven. 4. Route the power cord along a path that does not cross exhaust air piping or passageways and aisles. With stacked devices, keep the power cord away from hot spots on the other oven in the stack. 5-8 Heratherm Thermo Electron LED GmbH

49 Start-up Connecting Power 5. Connect the protection-earthed plug of the power cord to a correctly protection-earthed and earth leakage circuit breaker fused power socket. 6. Make sure the power cord is not subjected to tensile or compressive force. Power outlets Make sure that power outlets remain freely accessible at all times! [1] Sample /ECO Sensor [2] RS 232 interface [3] Alarm contact [4] Power socket Figure 5-11 AC Power Supply Socket Condensation When taking the oven into operation for the first time allow some time for stabilization before switching on to avoid condensation forming on live parts. Switching the Power Line Voltage The 240 V versions of Heratherm ovens are equipped with a wide-range power supply unit that permits them to be operated on a 240 V or 208 V power source. For optimum heating performance, though, the operating parameters of the built-in controller can be customized in software to obtain the best performance on either line voltage, 240 V or 208 V. This is achieved by entering two specific configuration codes in the Settings -> Configuration dialog explained in Configuration on page Q Table 5-1 Line Voltage Selection Codes Line Voltage Enter Code 208 V V 0240 Thermo Electron LED GmbH Heratherm 5-9

50 Start-up Connecting the RS-232 Interface Connecting the RS-232 Interface The RS-232 data communication interface supports the querying of status information and temperature data from the oven by entering basic commands in a standard terminal window provided by your computer s operating system. The interconnection requires a standard RS-232 cable with 9-pin connectors and a straight 1:1 pinout without any crossed wires, which is not supplied with the oven. Users may employ the RS-232 command inventory listed in Table 5-2 below for automating process data logging - for example, by embedding these commands in scripts that run on a remote computer. RS-232 interface compatibility Interconnecting the Oven with a Computer 1. Turn the computer off. 2. Route the serial interface cable along a path that does not cross hot exhaust air piping, tables, aisles or passageways. With stacked devices, keep the serial interface cable away from hot spots on the other oven in the stack. 3. Connect one connector of the serial interface cable (cable length, 5 to max. 10 m, not supplied as a standard item) to the socket labeled RS 232 in the electrical interfaces section at the rear of the oven (see Signal Interfaces and Power Socket on page 4-12). 4. Connect the second connector to an unused COM 1 /COM 2 or other serial port on the computer. 5. Boot the computer. 6. Launch your standard terminal program and set up the connection with the following parameters: bits per second 8 data bits 1 stop bit No Parity To avoid overloading and damaging the RS-232 interface check the interfacing parameters against the pin-out description given above and make sure that computer s interface port works with a signal level of +/- 5V DC. 7. Once your terminal indicates that serial communication has been established successfully, enter any of the commands listed in Table 5-2 below, depending on what type of information you want to query Heratherm Thermo Electron LED GmbH

51 Start-up Connecting the RS-232 Interface Command Syntax Rules Be sure to enter the commands exactly as shown in the examples in Table 5-2 below. Unsupported parameter addresses may lead to serious hardware malfunctions or damage the device, while unknown characters will result in error messages. 8. Use the following generic command syntax:?:aaaa:bb::cc<cr>, where:?: identifies the command line as a query; aaaa: is the parameter address; bb:: is a query, that must be left at 00 for technical reasons; cc is for a command - specific checksum listed in the table below. <CR> is for carriage return. You will receive a response of the following general format:!:aaaa:bb:xxxxx:cc<cr>, where:!: identifies the line as a response to a query; aaaa: is the parameter address entered with the query; bb: is the number of payload bytes in hexadecimal code - for example, 1F for the decimal value 31; XXXXXX: is the significant status information queried; cc: is a check sum (technically an inverted XOR of all bytes returned, excluding the check sum bytes and the <CR> character); <CR> is for carriage return. Table 5-2 Terminal Commands for Querying Data Command Syntax Combined Date and Time?:0010:00::c1 Date only?:0011:00::c0 Time only Response Example!:0010:11: ;01:02:23:e2 Date Time!:0011:08: :d2 Date Thermo Electron LED GmbH Heratherm 5-11

52 Start-up Wiring the Alarm Contact Table 5-2 Terminal Commands for Querying Data Command Syntax Response Example?:0012:00::c3!:0012:08:01:02:23:dc Time Temperature Set Value (T1); Current Work Space Temperature (T2); Reference Temperature (T3); Sample Sensor Temperature (T4)?:3010:00::c2!:3010:1f: ; ; ; :b0 T1 T2 T3 T4 Wiring the Alarm Contact Functional Description Skilled work Thermo Electron LED GmbH warrants the operational safety and the operativeness of the oven only if installation and repairs are performed by skilled personnel. The connection of the oven to an external alarm system must only be carried out by adequately trained and authorized electrical engineering or telecommunications expert personnel! When system errors and failures occur in the temperature control circuits, an alarm message is issued to the connected alarm monitoring system. The potential-free contact (single changeover-type contact) has been designed for the circuit configuration specified below. Switching behavior The alarm relay is energized by all error conditions reported by internal control loops Heratherm Thermo Electron LED GmbH

53 Start-up Wiring the Alarm Contact Alarm Relay Specifications 2 Connection Example Alarm contact electrical compatibility considerations To avoid overloading and damaging the alarm contact, check the electrical interfacing parameters of the alarm-receiving system for compatibility with the alarm relay specifications given above. The connector [5] for the interface cable is supplied with the oven as a standard item. Specifications for the operating voltage and the fusing of external alarm circuitry are given in the table on the previous page. 1. Wire the individual conductors [1] through [4] of the interface cable as shown in the wiring diagram. 2. Route the alarm cable along a path that does not cross hot exhaust air piping, tables, aisles or passageways. With stacked devices, keep the alarm cable away from hot spots on the other oven in the stack. 3. Plug the alarm system interface cable connector into the interface port [5] in the rear panel of the oven. Thermo Electron LED GmbH Heratherm 5-13

54 Start-up Wiring the Alarm Contact Figure 5-12 Alarm Relay Connection Example The circuit diagram shown above represents the undisturbed condition of operation. In case of an error condition - including a power outage - contact closure occurs on the path between contacts Heratherm Thermo Electron LED GmbH

55 6 Operation Preparing the Oven The oven must not be released for operation before all major start-up activities have been completed (see Start-up on page 5-1). Device Check Prior to starting operation, the following oven components must be checked for their correct function: The door seal in the front frame must not be damaged. The shelving components must be installed safely. Disinfecting the Oven s Work Space Disinfect the work space according to the operator-specified hygiene guidelines. Starting Operation 1. Turn the oven on using the control panel. 2. Adjust the temperature set value on the control panel. 3. The temperature controller starts adjusting the work space to the user-specified temperature set value now. To avoid any risk of explosion or fire refrain from loading the oven with any of the substances listed in the section Incorrect Use on page 1-6 make sure that the ambient air is free of any solvents do not operate the oven in areas with an explosion hazard 4. Load the work space with samples. Thermo Scientific Heratherm 6-1

56 Operation Starting Operation Risk of overloading Overloading may damage the shelves or cause the shelves and/or the oven to tilt when the shelves are being drawn out, ultimately destroying the samples. To avoid overloading the oven or its shelving be sure to observe the sample weight limits specified in see Technical Data on page 13-1 Hot surfaces The interior panel of the outer door as well as the surfaces of the outer housing, the shelving and the work space become extremely hot while the oven runs through its heating cycles. When removing samples from a running or recently completed heating cycle, always wear safety gloves and other appropriate personal protection equipment to avoid burns on hot surfaces! Proper loading To ensure sufficient air circulation and uniform heating of the samples, do not use more than 70% of the maximum surface area of the work space. Bulky objects in the work space that dissipate heat may impair heat distribution. 6-2 Heratherm Thermo Scientific

57 7 Handling and Control Heratherm OGH Series, OMH Series, OGH-S Series and OMH-S Series ovens come with a front panel mounted control unit consisting of a multifunctional display, four control buttons, and an on/off button. The four control buttons interact with the display window to let users access all of the user control functions and adjustments of the oven, including - for example, the temperature set value, timer, as well as a variety of other functions. Under normal operating conditions the display presents user with the work space temperature. The display returns to its default mode upon completion of the adjustments or whenever no entries have been made for a period of 30 seconds. The graphic below shows the Heratherm OGH 60/100/180, Heratherm OMH 60/100/180, Heratherm OGH 60/100/180-S, and Heratherm OMH 60/100/180-S control panel with all of its visualization elements and controls. Figure 7-1 Control Panel for Heratherm OGH Series, OMH Series, OGH-S Series and OMH-S Series Ovens D1 D2 D3 K1 K2 K :33 Timer On Off D4 D5 D6 K4 K5 The table below contains brief descriptions of the buttons on the control panel (items K1 through K5 in Figure 7-1 above). Thermo Scientific Heratherm 7-1

58 Handling and Control Table 7-1 Control Buttons Icon Item Function K1 Menu/Enter button First key press: Activates the menu, highlighting the first menu item with a red border. Second key press: Selects the currently activated menu item (as highlighted by the red border), depending on the currently selected function, pressing this button enables entries with item D2, D5 or D6. Third key press (once a setting has been changed): Confirms a previous entry or selection. K2 Left button After the first press of the Menu/Enter button: - Moves the selection in the menu (see item D3) to the next icon on the left. Once a menu item has been selected: - Decreases an adjustable parameter value - for example, the temperature set value in D5 or the fan speed level at D6. Holding this button depressed for a few seconds changes the selected value in quick run mode. - Moves the selection in the multifunctional display pane at D2 to the next option on the left - for example, from the Off state of the timer to On. K3 On/Off button Holding this button depressed for 2 seconds switches the oven off. The display window goes out, except for the readiness indicator icon in the status display area at item D4. The temperature display pane D1 provides as dimmed readout of the work space temperature, provided that the temperature exceeds 50 C (122 F). K4 Right button After the first press of Menu/Enter button: - Moves the selection in the menu (see item D3) to the next icon on the right. Once a menu item has been selected: - Increases an adjustable parameter value - for example, the temperature set value in D5 or the fan speed level at D6. Holding this button depressed for a few seconds changes the selected value in quick run mode. - Moves the selection in the multifunctional display pane at D2 to the next option on the right - for example, from the On state of the timer to Off. K5 Escape button Returns to the previous level of the menu or standard display. Upon exiting from the current menu item the user may be prompted to save any previously made settings. 7-2 Heratherm Thermo Scientific

59 Handling and Control The table below contains brief descriptions of the display features of the control panel (items D1 through D6 in Figure 7-1; the identifiers K1 through K4 refer to the buttons shown in that figure). Table 7-2 Display Features Feature Item Function D1 Display pane showing a permanent readout of the actual temperature in the work space either in C or F (depending on the user's preferences, see Temperature Display Unit on page 7-29). Alternatively, a flashing time entry prompt of the general format hh:mm (hours:minutes, both with two digits) appears in this place while the user is setting the oven's built-in clock :59PM D2 Timer On Off Four-line multifunctional display pane with fields for date and time, a display area for the specific options of the selected menu item, detailed alarm messages with alarm codes, progress indicators for continuous processes (for example, program-controlled temperature ramping), etc :59 heating relay error (E109) D3 Menu bar with iconized representations of adjustable parameters. A red border is used to highlight the current menu item, as selected using the Menu (K1) and arrow buttons Left (K2) and Right (K4). Brief descriptions of the individual menu items are given in Table 7-3 below. Note If a menu item cannot be selected, then the function it represents is not part of the equipment configuration of your unit. D4 Status display area with three icons representing specific statuses of the oven (from left to right): - The Door Open icon appears when the front door of the oven is open or has not been closed correctly (see Door Switch on page 4-10). Note The Door Open icon is only functional with OGH-S Series and OMH-S Series devices. - Upon occurrence of an error condition, the red alarm icon will be illuminated. At the same time the current error code will flash in the display pane D2. The alarm may be acknowledged by pressing the button. - The readiness indicator icon appears when the oven has been switched off using the On/Off button (item K3 in Figure 7-1 on page 7-1). D5 Settings pane labeled Set for temperature set value in either C or F (depending on the user's preferences; see Temperature Display Unit on page 7-29). Thermo Scientific Heratherm 7-3

60 Handling and Control Table 7-2 Display Features Feature Item Function The table below contains brief descriptions of the menu bar icons..x D6 D6 The left one of the two vertical bar graphs belongs to the Fan icon directly beneath it and displays the current fan speed level. Bar graph for fan speed setting (in 5 steps: 1 5) - level 1 (chevron 1 illuminated) - level 2 (chevrons 1 and 2 illuminated) - level 3 (chevrons 1 through 3 illuminated) - level 4 (chevrons 1 through 4 illuminated) - level 5 (chevrons 1 through 5 illuminated) The right one of the two vertical bar graphs belongs to the Damper icon directly beneath it and displays the current damper position. Bar graph for damper position (in 4 steps: 0 3) - position 0 (damper closed - all chevrons extinguished) - position 1 (chevrons 1 and 2 illuminated) - position 2 (chevrons 1 through 4 illuminated) position - position 3 (damper fully opened; chevrons 1 through 5 illuminated) Table 7-3 Menu Bar Icons Icon Function Temperature Set Value Allows for changing the temperature set value (factory-preset to 50 C/122 F) within the permissible temperature range. The set value can be changed by pressing the Left and Right (item K2 or K4) and you can, after confirming your changes with the Menu/Enter button (item K1), track the impact on the actual temperature in the multifunctional display pane at D5. Instructions: Temperature Set Value on page 7-7. Timer Allows for having the oven turn on or off upon expiry of a user-specified countdown period or at a fixed on or off time, or having it operate on a complete weekly schedule of daily on and off times. When the user enables an on timer the oven is turned off. A rotating in the Timer icon and the illuminated readiness indicator icon in the status display area indicate that the timer is running. Instructions: Timer on page 7-8. Booster A convenience feature designed to allow for speed-heating a cold and empty unit spontaneously (requires a set temperature of at least 150 C/302 F). Instructions: Boost on page Heratherm Thermo Scientific

61 Handling and Control Table 7-3 Menu Bar Icons Icon Function Fan (OMS Series, OMH Series and OMH-S Series only) Turns the fan on and allows for choosing the fan speed levels described under D6. The current setting is shown by the bar graph located directly above the icon and spelled out as a numeric value in the display pane at D2. Instructions: Fan on page Damper Opens and closes the damper in graded steps. The current damper position is shown by the bar graph located directly above the icon and spelled out as a percentage in the display pane at D2. Instructions: Damper on page Settings Invokes a submenu with the following functions: - Read access to error log - Calibrating the oven - Setting date and time - Toggling the temperature display unit between C and F - Setting preferences for user programs (program cycles / mode after end) - Selecting the timer mode of operation (countdown / fixed time of day / weekday timer) - Entering a configuration control code (Instructions: Settings on page 7-21) Program Allows for launching, creating, deleting, copying, and editing user programs. (Instructions: Programming on page 7-35) Button Inactivity Monitoring When no button is pressed for more than 30 seconds in any selected menu item, the display exits from the selected screen and returns to default display mode. Thermo Scientific Heratherm 7-5

62 Handling and Control Powering Up Powering Up 1. Plug the power plug of the oven into a suitable protection-earthed AC power outlet. In the display window on the front panel the readiness indicator icon (rightmost icon in the status display area at D4 in Figure 7-1 on page 7-1) is illuminated. 2. Keep the On/Off button depressed for two seconds. An initialization routine will be run after the oven has been powered up. Once initialization has been completed, the display will light up and the current work space temperature will appear in the temperature display pane (item D1 in Figure 7-1 on page 7-1). The oven is ready for use now. Switching the Oven Off / Powering Down 1. Keep the On/Off button depressed for two seconds. The display window goes out, except for the readiness indicator icon (rightmost icon in the status display area at D4 in Figure 7-1 on page 7-1) and a residual heat temperature readout in case the work space temperature is still higher than 50 C/122 F. The oven is switched off now. 2. If required, unplug the AC power plug to power down the oven completely. 7-6 Heratherm Thermo Scientific

63 Handling and Control Temperature Set Value Temperature Set Value Heratherm ovens allow for setting the desired work space temperature directly using only a few button presses. After confirming the new temperature set value in the settings pane Set (item D5 in Figure 7-1 on page 7-1), the user may trace the resulting temperature change in the temperature display pane (item D1 in Figure 7-1 on page 7-1). You can also use the temperature set value to speed up cool-down subsequent to a drying or heating process. The usable set temperature range of Heratherm ovens has a factory-preset lower limit of 50 C (122 F). You can set the oven to a set temperature of 0 C (32 F), though, to speed up cool-down. This is achieved in one single step, as described further below. Table 7-4 Adjusting the Temperature Set Value Press to activate the menu bar, then use to select the Temperature icon and press to confirm. In the flashing settings pane Set, press or to adjust a new temperature set value, then press to confirm your settings. The display returns to its default mode. The actual temperature measured in the work space and shown in the temperature display area starts to change until it reaches the newly adjusted set value. Table 7-5 Using the Temperature Set Value to Speed Up Cool-Down At the end of the drying or heating process, press to activate the menu bar, then use to select the Temperature icon and press to confirm. In the flashing settings pane Set, press to lower the temperature set value to 50 C (122 F), then on to 0 C (32 F) in one additional step. When the display reads 0 C (32 F), press to confirm your settings. The display returns to its default mode. The actual temperature measured in the work space and shown in the temperature display area starts to drop, showing the progress of the cool-down process. Thermo Scientific Heratherm 7-7

64 Handling and Control Timer Timer The Timer feature from the menu bar enables the user to turn the oven on and off at scheduled times. The timer supports three different modes of operation, depending on the user's preferences: Countdown-type on or off timer: Turns the oven on or off after a user-specified period of time. Instructions on setting the preferences for this option are given in Table 7-6 below, while its use as an off timer and on timer are described in Table 7-7 on page 7-9 and Table 7-8 on page 7-9, respectively. Fixed-time on or off timer: Turns the oven on or off at a scheduled time. Instructions on setting the preferences for this option are given in Table 7-9 on page 7-10, while its use as an off timer and on timer are described in Table 7-10 on page 7-10 and Table 7-11 on page 7-11, respectively. Weekly timer: Turns the oven on or off at scheduled times on specific days of the week. The process for setting the preferences for this option is described in Table 7-12 on page 7-11, while instructions for programming the daily turn-on and turn-off times are given in Table 7-13 on page Programming a turn-on time causes the oven to shut down until it is scheduled to restart, while a turn-off time keeps it running before it shuts down at the user-specified time. The timer starts running immediately as soon as the user confirms his or her entries. Pre-programmed routines (user programs, decontamination) override timer schedules. A timer will not start before a concurring program has finished execution. Table 7-6 Presetting the Countdown Timer Mode of Operation Press to activate the menu bar, then use to select the Settings icon and press to confirm :14PM Settings Timer Press to switch to the Timer menu item and confirm the selection with :14PM Settings Timer Count Down Press or to preselect the Countdown timer as the mode of your choice, then use to confirm the selection. The display returns to its default mode. 7-8 Heratherm Thermo Scientific

65 . Handling and Control Timer Table 7-7 Setting a Countdown-type Off Timer Press to activate the menu bar, then use to select the Timer icon and press to confirm :59PM Timer On Off Press to select the off timer option Off :05PM Off-Timer 00:00 Set the hours and minutes until the oven is supposed to shut down by pressing or, then press to confirm. The display returns to its default mode. In the menu bar, the Timer icon is illuminated and a is rotating on the icon's face. Table 7-8 Setting a Countdown-type On Timer Press to activate the menu bar, then use to select the Timer icon and press to confirm :59PM Timer On Off Press to confirm. to select the on timer option On, then :05PM On-Timer 00:00 Set the hours and minutes until the oven is supposed to turn on by pressing or, then press to confirm. The oven switches off. The display goes out, the Timer icon is illuminated in the menu bar with a hand rotating on its face. Additionally, the readiness indicator icon is illuminated. Thermo Scientific Heratherm 7-9

66 . Handling and Control Timer Setting a Fixed-time On or Off Timer Table 7-9 Presetting the Fixed-time Timer Mode of Operation Press to activate the menu bar, then use to select the Settings icon and press to confirm :14PM Settings Timer Press to switch to the Timer menu item and confirm the selection with :14PM Settings Timer Absolute Press or to preselect the Absolute fixed-time timer as the mode of your choice, then to confirm the selection. The display returns to its default mode. Table 7-10 Setting a Fixed-time Off Timer Press to activate the menu bar, then use to select the Timer icon and press to confirm :59PM Timer On Off Press to select the off timer option Off :05PM Off-Timer :05PM Set year, month, day, hours and minutes using or, followed by to confirm. In the menu bar, the Timer icon is illuminated and a is rotating on the icon's face Heratherm Thermo Scientific

67 Handling and Control Timer Table 7-11 Setting a Fixed-time On Timer Press to activate the menu bar, then use to select the Timer icon and press to confirm :59PM Timer On Off Press to confirm. to select the on timer option On, then :05PM On-Timer :05PM Set year, month, day, hours and minutes using, followed by to confirm. or The oven switches off. The display goes out, the Timer icon is illuminated in the menu bar with a hand rotating on its face, and the readiness indicator icon is illuminated additionally. Setting a Weekly Timer Table 7-12 Presetting the Weekly Timer Mode of Operation Press to activate the menu bar, then use to select the Settings icon and press to confirm :14PM Settings Timer Press to switch to the Timer menu item and confirm the selection with :14PM Settings Timer Weekly Press or to preselect the Weekly timer as the mode of your choice, then to confirm the selection. The display returns to its default mode. Thermo Scientific Heratherm 7-11

68 Handling and Control Timer Table 7-13 Setting a Weekly Timer Press to activate the menu bar, then use to select the Timer icon and press to confirm :59PM Timer On In the selection screen shown at left, press switch from On to the Edit option. to :59PM Timer Edit Select the Edit option by pressing :59PM 1:05PM Off-Timer Monday On: :00AM 1:05PM Off: 06:00PM Press to select the on time for Monday, which should start flashing when selected (or continue to the desired weekday by pressing, which will cause the on time of that day to start flashing). Press or to set the hours, then continue to minutes by pressing. Use or to set the minutes, then continue to Tuesday or any other desired weekday by pressing :59PM 1:05PM Off-Timer Sunday On: :--AM1:05PM Off: --:--PM. To prevent the oven from turning on and back off on a specific day, set both hours and minutes to --:--. Set the scheduled turn-on and turn-off times for each single day of the week all the way to Sunday and press. (The turn-on and turn-off times for Saturday and Sunday are disabled by default.) If there is no need to set or change the turn-on and/or turn-off times for a specific weekday, press and or to go back and forth to the previous and next day, respectively Heratherm Thermo Scientific

69 Handling and Control Timer Table 7-13 Setting a Weekly Timer :59PM Save? No Yes When prompted to save your changes, press confirm. Note This prompt for saving also appears when you press the button while working on the weekly timer's settings. to :59PM Timer On To enable the weekly timer press. Alternatively, press and to select the Off option if the weekly timer you have just saved should be activated at a later date. If you have chosen to enable the weekly timer immediately, the Timer icon is illuminated in the menu bar and a hand is rotating on the icon's face. Stopping a Timer Table 7-14 Stopping an Off Timer Before It Expires Press to activate the menu bar, then use to select the Timer icon and press to confirm :12PM Stop Timer? No Yes Press to confirm the Yes default selection. In the menu bar, the Timer icon will go out. The display returns to its default mode. Table 7-15 Stopping an On Timer Before It Expires :12PM Stop Timer? No Yes To cancel a pre-programmed on timer while the oven is switched off, hold the On/Off button depressed for a few seconds. In the Stop Timer? prompt that appears, confirm the default selection Yes by pressing. In the menu bar, the Timer icon will go out. The display returns to its default mode. Thermo Scientific Heratherm 7-13

70 Handling and Control Timer Table 7-16 Stopping a Weekly Timer Before It Expires Press to activate the menu bar, then use to :59PM Timer On select the Timer icon and press to confirm. The flashing word On appears in the multifunctional display pane. Press to switch to Off state, then press to confirm :59PM Timer Off :05PM Timer stopped! The message Timer stopped appears as a confirmation. In the menu bar, the Timer icon will go out. The display returns to its default mode Heratherm Thermo Scientific

71 Handling and Control Boost Boost The boost feature allows for speed-preheating a cold, empty oven to a previously adjusted temperature set value (see Temperature Set Value on page 7-7) of at least 150 C (302 F). In boost mode, the oven s heaters work at their full capacity to approximate the set temperature as fast as possible. This feature may disable overheat protection for up to 30 minutes and allow the heater to work with temporary peak temperatures. Once the preset temperature has been reached, the unit is restored to normal temperature control, and the user may proceed to loading the oven with the samples. Table 7-17 Turning Boost On Set the temperature set value to at least 150 C/302 F (see Temperature Set Value on page 7-9). Press to activate the menu bar, then use to :34PM Timer On Off select the Boost icon and press to confirm. In the selection screen that appears, confirm the preselected option On by pressing :34PM Timer On The selected option On remains in the display pane for a few seconds to let you track your action. The display returns to its default mode. The Boost icon in the menu bar is illuminated to indicate that boost mode has been activated. Once the preset temperature set value has been reached, the boost heater turns off automatically, and the Boost icon goes out. Risk of burns! Depending on the chosen temperature set value, high temperatures may prevail in the work space once the oven has been speed-heated using the boost feature. To avoid the risk of injury, users must wear protective gloves or other suitable personal protection equipment when loading the work space of the oven! Thermo Scientific Heratherm 7-15

72 Handling and Control Boost Table 7-18 Turning boost off prematurely Press to activate the menu bar, then use to :34PM Timer On Off select the Boost icon and press to confirm. In the selection screen that appears, confirm the preselected option Off by pressing :35PM Timer Off The selected option Off remains in the display pane for a few seconds to let you track your action. The display returns to its default mode. The Boost icon in the menu bar is extinguished to indicate that boost mode has been turned off Heratherm Thermo Scientific

73 Handling and Control Fan Fan This menu item (OMH Series and OMH-S Series only) allows for gradually adjusting the speed of the fan between 20 and 100 percent. OMH Series and OMH-S Series ovens employ forced ventilation, that is, the fan runs continuously with at least 20% of its maximum speed to ensure forced ventilation of the oven s work space. The current setting of the fan is indicated by the illuminated Fan icon in the menu bar and the five-level bar graph (see item D6 in Figure 7-1 on page 7-1) for the fan speed setting located directly above the icon. The fan can be adjusted in 5 levels: 20% (1 chevron illuminated) 40% (2 chevrons illuminated) 60% (3 chevrons illuminated) 80% (4 chevrons illuminated) 100% (5 chevrons illuminated) To protect the oven from overheating, however, the built-in controller may override the user s setting and increase the fan speed automatically when the work space temperature rises above the set value. A fan error will occur on a loss of speed. Table 7-19 Adjusting Fan Speed Press to activate the menu bar, then use to :15 20% select the Fan icon and press to confirm. The settings dialog shown at left appears in the multifunctional display pane, with the current fan speed setting flashing (default speed is 20%) :15 80% Change fan speed with or, then press to confirm. Thermo Scientific Heratherm 7-17

74 Handling and Control Fan Table 7-19 Adjusting Fan Speed If a Heater prot. message appears when you try to turn off the fan or reduce its speed: OMH Series and OMH-S Series ovens employ forced ventilation, that is, the fan cannot be turned off completely and will run at a variable minimum speed when a certain temperature limit is exceeded. Any attempt to return the fan speed level to 0% will be denied, as indicated by the message heater prot. in the multifunctional display pane. Likewise, the heater prot. message may appear upon the first press of the button or any subsequent step when you try to reduce fan speed. This indicates that the overheat protection feature has taken over fan control, regulating fan speed automatically to a safe level that rules out any thermal damage to the oven s heating circuits. In either case, fan speed control is restricted to the speed level admitted by the controller or remains disabled altogether until the workspace temperature has returned to a safe level. The display returns to its default mode. The Fan icon remains illuminated in the menu bar Heratherm Thermo Scientific

75 Handling and Control Damper Damper This menu item allows for gradually opening and closing the damper that vents the oven's work space. The current status of the damper will be indicated by illumination of the Damper icon in the menu bar and the four-level bar graph (see item D6 in Figure 7-1 on page 7-1) for the damper's angular position, located directly above the icon. The damper can be adjusted in 4 steps: Position 0: damper closed - all chevrons extinguished Position 1: chevrons 1 and 2 illuminated Position 2: chevrons 1 and 4 illuminated Position 3: damper fully opened; chevrons 1 through 5 illuminated Table 7-20 Opening the Damper Press to activate the menu bar, then use or :37 0 to select the Damper icon and press to confirm. The settings dialog shown at left appears in the multifunctional display pane, with the starting value 0 flashing :37PM :37 3 Press as often as needed to accomplish the desired damper setting, then confirm with. The multifunctional display pane will show the current damper setting as a numerical value between 0 and 3. Additionally, the matching number of chevrons will be illuminated in the bar graph to the right. The display returns to its default mode. The Damper icon in the menu bar is illuminated to indicate that the damper has been opened and how far. Thermo Scientific Heratherm 7-19

76 Handling and Control Damper Table 7-21 Adjusting the Damper Position or Closing the Damper Press to activate the menu bar, then use or :37 3 to select the Damper icon and press to confirm. The settings dialog shown at left appears in the multifunctional display pane, with the current damper position flashing :37PM 1 Use or to change the damper position, then confirm with :37 0 To close, set the damper position to 0 using confirm with., then The display returns to its default mode. If you have just readjusted the damper position, the Damper icon will remain illuminated in the menu bar. Should you have chosen to turn close the damper altogether, the Damper icon in the menu bar will be extinguished Heratherm Thermo Scientific

77 Handling and Control Settings Settings The Settings menu item opens a submenu populated with various commands for viewing general status information on the unit and setting preferences for the operation of the oven or its display window: Read access to error log Calibrating the oven Setting date and time Toggling the temperature display unit between C and F Toggling process protection on and off Setting preferences for user programs (program cycles / mode after end) Selecting the timer mode of operation (countdown / fixed time of day / weekday timer) Entering a configuration control code Instructions for using these features are given in the following. Error Log Users calling customer service for support may be asked by the agent to supply information from the error log of the oven.this internal memory may be accessed by choosing the Settings -> Error menu item It enables the user to browse through the most recent 22 alarm messages that were caused by hardware or control loop errors. Each error is displayed with the date and time of its occurrence, a brief clear text description and an internal error code. Error codes and instructions for clearing alarm conditions appear in the section Error Codes on page Table 7-22 Reading the Error Log Press to activate the menu bar, then use or to select the Settings icon and press confirm. to :33PM Settings Error Press submenu. to select the Error item from the Settings :36PM Error :31PM Fan Error (E009) The first entry of the error log is displayed, numbered 0. This entry represents the most recently registered error. Thermo Scientific Heratherm 7-21

78 Handling and Control Settings Table 7-22 Reading the Error Log :37PM Error :34PM Heat Relay (E109) Press to go to the next entry (or to go back to the previous one). After the entry numbered 21 the display wraps and returns to the beginning of the error log, displaying entry Error 0. To exit from the error log and return to normal display mode press twice. The Settings icon in the menu bar will go out. Calibration The Settings -> Calibration menu item enables the user to initiate a temperature calibration routine for the built-in temperature sensors and choose whether calibration should be accomplished manually or automatically: The Manual option allows for entering an absolute temperature directly, as measured - for example, using an external reference sensor. The Eco function (optional) is required for using the Eco convenience program. It computes the spatial temperature difference between the temperature prevailing at the location of the sample (as measured by the sample sensor; accessory part to be ordered separately) and the current workspace temperature (as measured by the built-in sensor of the oven). The built-in controller uses the result to compute a temperature limit that marks the end of the drying process. The temperature preset on the oven during the Eco calibration process must be equal to the ultimate temperature set value for the drying process. The Eco convenience program and its use are described in more detail in the section ECO Convenience Program on page The Sample function (optional) allows for a thermal calibration of a sample sensor (accessory to be ordered separately) connected to the oven by direct entry of an absolute value measured using an external temperature measuring device. Calibration Prerequisites Maintain the ambient conditions within the specified limits of the oven and make sure that the damper is fully closed before launching calibration. Varying ambient conditions and/or an open damper may impact the result of the calibration routine, which may lead to misadjustment of the controller and unreliable temperature control operation Heratherm Thermo Scientific

79 Handling and Control Settings Table 7-23 Entering the Calibration Reference Temperature Manually Press to activate the menu bar, then use or :33PM Settings Error to select the Settings icon and press to confirm. The Error menu item from the Settings submenu appears in the multifunctional display pane :33PM Settings Calibration Press to switch to the Calibration menu item and confirm the selection with :33PM Settings Calibration Manual In the Calibration selection screen, press choose the preselected option Manual. to :33PM Settings Calibration 36.9 C In the settings dialog that appears, set the temperature measured with the external reference sensor by using or and confirm the settings with. The newly entered value will be stored and used to calibrate the internal temperature sensors with the value measured by the reference sensor. The display returns to its default mode. The Settings icon in the menu bar will go out. Table 7-24 ECO Temperature Calibration Place the temperature sensor at the location where the sample is to be placed. Route the sensor lead through the tube access port in the back wall of the oven and plug it into the connect on the device s back panel. Press to activate the menu bar, then use or to select the Settings icon and press confirm. to Thermo Scientific Heratherm 7-23

80 Handling and Control Settings Table 7-24 ECO Temperature Calibration :33PM Settings Error The Error menu item from the Settings submenu appears in the multifunctional display pane :33PM Settings Calibration Press to switch to the Calibration menu item and confirm the selection with :33PM Settings Calibration Eco :33PM :33PM Calibration Calibration Auto Eco On Off :33PM Calibration Eco On In the Calibration selection screen, press to choose the Eco option and confirm the selection with. The current operating status appears in the display pane, represented by the flashing word Off. Press to switch to On state, then to confirm. The selected option On remains in the display pane for a few seconds to let you track your action :35PM Eco Calib. Running The confirmation message Eco Calib. Running appears in the multifunctional display pane to indicate that automatic calibration is running. The Settings icon in the menu bar will go out. Once the calibration process has been accomplished, the display returns to its default mode Heratherm Thermo Scientific

81 Handling and Control Settings Table 7-25 Entering the Calibration Reference Temperature for the Sample Sensor Manually Place the sample sensor at the location where the sample is to be placed. Route the sensor lead through the tube access port to an external temperature measuring device. Power up the measuring device and wait until the sample sensor has stabilized and provides a constant temperature reading. Press to activate the menu bar, then use or :33PM Settings Error to select the Settings icon and press to confirm. The Error menu item from the Settings submenu appears in the multifunctional display pane :33PM Settings Calibration Press to switch to the Calibration menu item and confirm the selection with :33PM Settings Calibration Sample In the Calibration selection screen, press choose the Sample option. to :33PM Settings Calibration 36.9 C In the settings dialog that appears, set the temperature measured with the external reference sensor by using or and confirm the settings with. The newly entered value will be stored and used to calibrate the built-in controller to the absolute value measured by the sample sensor. The display returns to its default mode. The Settings icon in the menu bar will go out. Thermo Scientific Heratherm 7-25

82 Handling and Control Settings Date and Time The Settings -> Time / Date option allows for switching between the international time and date display formats and for setting the time and date of the internal clock. There are two display formats to choose from: European date format DD.MM.YYYY and 24-hours time format. Example: and 15:05. US standard date format YYYY-MM-DD and 12-hour time format with AM/PM suffix. Example: and 3:05 PM. Table 7-26 Setting the Date Format Press to activate the menu bar, then use or :33PM Settings Error to select the Settings icon and press to confirm. The Error menu item from the Settings submenu appears in the multifunctional display pane :05PM Settings Time / Date Press to switch to the Time / Date menu item and confirm the selection with :05PM Settings Time / Date Date :05PM Settings Time / Date Date The Date menu item is flashing in the multifunctional display pane. Choose the preselected option Date by pressing. The date field will start flashing in the upper left corner of the multifunctional display pane. Press or to switch to the desired date format DD.MM.YYYY or YYYY-MM-DD and confirm the selection with. The date field in the upper left corner will change its appearance according to your selection (and stop flashing). The display returns to its default mode. The Settings icon in the menu bar will go out Heratherm Thermo Scientific

83 Handling and Control Settings Table 7-27 Setting the Time Format Press to activate the menu bar, then use or :33PM Settings Error to select the Settings icon and press to confirm. The Error menu item from the Settings submenu appears in the multifunctional display pane :05PM Settings Time / Date Press to switch to the Time / Date menu item and confirm the selection with :05PM Settings Time / Date Date The Date menu item is flashing in the multifunctional display pane :05PM Settings Time / Date Time :05PM Settings Time / Date Time In the flashing Date menu item, press to switch to the Time option and confirm the selection with. The Time menu item is flashing in the multifunctional display pane, along with the time field in the upper right corner. Press or to switch to the desired time format hh:mm or hh:mm AM/PM and confirm the selection with. The time field in the upper right corner will change its appearance according to your selection (and stop flashing). The display returns to its default mode. The Settings icon in the menu bar will go out. Thermo Scientific Heratherm 7-27

84 Handling and Control Settings Table 7-28 Setting Date and Time Press to activate the menu bar, then use or :33PM Settings Error to select the Settings icon and press to confirm. The Error menu item from the Settings submenu appears in the multifunctional display pane :05PM Settings Time / Date Press to switch to the Time / Date menu item and confirm the selection with :05PM Settings Time / Date Date The Date menu item is flashing in the multifunctional display pane :05PM Settings Time / Date Set From the flashing Date menu item, press to switch to the Set option and confirm the selection with. The Set menu item is flashing in the multifunctional display pane now, along with the year section of the date field in the upper left corner. Press or to set the year and confirm your settings with. The flashing selection moves on to the month section of the date field. Set months, days, hours and minutes using or and confirm each setting with. When you confirm with the button after setting the minutes, the date and time field in the upper right corner will be updated according to your settings (and stop flashing). The display returns to its default mode. The Settings icon in the menu bar will go out Heratherm Thermo Scientific

85 Handling and Control Settings Temperature Display Unit The Settings -> C / F menu item allows for toggling the unit used for displaying temperatures between degrees Centigrade and Fahrenheit. Note This setting does not have any impact on data logging via the RS-232 interface. Any temperature data that is logged to a computer for operational parameter documentation purposes is handed over in C. Table 7-29 Toggling the Temperature Display Unit Press to activate the menu bar, then use or :33PM Settings Error to select the Settings icon and press to confirm. The Error menu item from the Settings submenu appears in the multifunctional display pane :31AM Settings C / F Press to switch to the C / F menu item and confirm the selection with :31AM Settings C / F C The multifunctional display pane changes to the following selection screen, with the currently unused temperature display unit flashing. (The factory default setting is F.) Press or to switch to the desired temperature :31AM Settings C / F F unit and confirm the selection with. The temperatures in the display pane (item D1 in Figure 7-1 on page 7-1) and settings pane Set (item D5 in the same figure) will be displayed with the newly selected unit. The display returns to its default mode. The Settings icon in the menu bar will go out. Thermo Scientific Heratherm 7-29

86 Handling and Control Settings Process Protection Process Protection kicks in when a program enters hold mode. When the temperature measured by the built-in sensor is found to depart from the set value by more than 0.5 C (32.9 F), the remaining time in hold mode is suspended until the temperature difference between the actual value and set value returns to less than 0.5 C /32.9 F). Table 7-30 Toggling Process Protection On and Off Press to activate the menu bar, then use or :33PM Settings Error to select the Settings icon and press to confirm. The Error menu item from the Settings submenu appears in the multifunctional display pane :31AM Settings Protection Press to switch to the Protection menu item and confirm the selection with :43PM Settings Protection On In the selection screen that appears, press to switch from On to Off state. To activate switch from Off to On state accordingly. confirm the selection with :43PM Settings Protection Off The display returns to its default mode. The Settings icon in the menu bar will go out Heratherm Thermo Scientific

87 Handling and Control Settings Program Preferences Program Cycle Prompt The Settings ->Program menu item supports the preferences described in the following for the execution of user programs (see Programming on page 7-35) used to control the oven's operations. When a program terminates after running through one or more program cycles (see the section Program Cycle Prompt below), a single audible signal consisting of 5 beeps is given when no error condition is present. The oven is then switched off, unless the user has set the preferences to keep it running, as explained in the section Mode after End (of Program) on page This menu item allows for enabling a prompt (deactivated when the oven ships from the factory) that asks for the number of times a program should be repeated (see Launching a Program on page 7-37) whenever the user launches a program. Table 7-31 Activating / Deactivating the Program Cycle Prompt Press to activate the menu bar, then use or :33PM Settings Error to select the Settings icon and press to confirm. The Error menu item from the Settings submenu appears in the multifunctional display pane :43PM Settings Program Press to switch to the Program menu item and confirm the selection with :43PM Settings Program Loops In the selection screen that appears, choose the preselected option Loops by pressing. Thermo Scientific Heratherm 7-31

88 Handling and Control Settings Table 7-31 Activating / Deactivating the Program Cycle Prompt :43PM Program Loops On :43PM Program Loops Off In the subsequent selection screen, enable the prompt (deactivated in as shipped state) by using to move the selection from Off to On state. To deactivate the prompt, switch back from On to Off state using or and confirm the selection with. When you choose Off, the oven is switched off after just one program cycle. You may change this default behavior by changing the Mode after End (of Program) preference explained in the next section. The display returns to its default mode. The Settings icon in the menu bar will go out. Mode after End (of Program) Additionally this command allows for enabling a second prompt (also deactivated when the oven ships from the factory) that appears when the user launches a program and asks for the mode of operation the oven should continue to run upon completion of the program (see Launching a Program on page 7-37): Off: This option turns the device off when the program ends. It does not prompt the user to confirm. On: When the user launches a program, this option prompts whether the oven should be turned off or continue to run in hold mode with the latest settings until the user acknowledges the end of the program. An active weekly timer will be suspended until the Program End message is acknowledged. Upon resuming the timer, the oven will seek to establish the set value that was in place before the program was started (including fan speed and damper position). Table 7-32 Changing the Mode after End Press to activate the menu bar, then use or :33PM Settings Error to select the Settings icon and press to confirm. The Error menu item from the Settings submenu appears in the multifunctional display pane Heratherm Thermo Scientific

89 Handling and Control Settings Table 7-32 Changing the Mode after End :43PM Settings Program Press to switch to the Program menu item and confirm the selection with :43PM Settings Program Loops In the selection screen that appears press to switch from the preselected option Loops to Mode after End, then confirm the selection with :43PM Settings Program Mode after End :43PM Program Mode after End On In the subsequent selection screen press or to switch between the On (Temperature Hold) and Off (factory default) states, then confirm the selection with :43PM Program Mode after End Off The display returns to its default mode. The Settings icon in the menu bar will go out. Configuration The Settings -> Configuration menu item enables the user to enter a four-digit code that loads a specific set of operating parameters for the oven - for example, in order to make the voltage selection described in the section Connecting the RS-232 Interface on page 5-10 (only for 100 and 180 liter units). Thermo Scientific Heratherm 7-33

90 Handling and Control Settings Table 7-33 Entering the Four-digit Code Press to activate the menu bar, then use or :33PM Settings Error to select the Settings icon and press to confirm. The Error menu item from the Settings submenu appears in the multifunctional display pane :00PM Settings Configuration Press to switch to the Configuration menu item and confirm the selection with :00PM Settings Configuration :00PM Settings Configuration 0240 The multifunctional display pane will present a prompt similar to the example shown at left, with the first digit of the four-digit configuration code flashing. Set the first digit of the configuration code using (or ) and confirm your setting with. Set the remaining three digits exactly as described above. By confirming your entry for the last digit with, the new configuration is activated immediately. The display returns to its default mode. The Settings icon in the menu bar will go out Heratherm Thermo Scientific

91 Handling and Control Programming Programming End of Program The menu item Program enables the user to create, store and launch up to 10 programs for automating workflows. Each of the 10 programs may consist of a maximum of 10 steps. The following properties may be defined for each step, depending on the current hardware configuration: duration in hh:mm temperature set value fan speed level (1 through 5; OMH Series and OMH-S only) damper position (0 through 3) To ease the creation of programs users may choose to copy and edit existing programs. The end of a program is indicated by an audible signal (5 beeps). The oven is switched off or changes to Temperature Hold mode, as preset in the preferences under Mode after End (of Program) on page The display shows the message Program End as well as the temperature of the residual heat. ECO Convenience Program With Heratherm OGH-S Series and OMH-S Series ovens, the Eco convenience program allows for turning off an oven automatically from within an ongoing drying process as soon as the samples are dry. This requires that a sample sensor (accessory to be ordered separately) be connected to a dedicated port on the rear panel of the oven and inserted into the sample to be dried. While the drying process is ongoing, the actual workspace temperature is continuously compared with the sample temperature measured by the sample sensor. At the beginning of the drying process, the cooling effect produced by evaporation prevents the sample from reaching the specific temperature limit preset during the Eco calibration routine. As soon as the entire humidity has evaporated from the sample to be dried, the sample sensor will measure a rise in temperature. If monitoring of the sample temperature indicates that the limit has been exceeded, the drying process is terminated and the oven shuts down automatically. The temperature limit is computed from the differential between the actual workspace and sample temperatures, which means that it is depends on the location of the sample in the device s workspace and the temperature set value for the drying process. Therefore, using the Eco convenience program requires a previous Eco calibration of the sample sensor. This calibration routine should be repeated whenever the placement of the sample or the temperature set value for the drying process are varied in a significant way. Thermo Scientific Heratherm 7-35

92 Handling and Control Programming The Eco calibration result is factored into the program termination criteria only and does not have any impact on the sample sensor temperature readout in the multifunctional display pane. Preparing the Oven for the Eco Convenience Program Carrying Out Eco Calibration 1. Connect the sample sensor to the port on the rear panel of the oven, then insert it through the tube access port (also found on the rear panel of the device) into the oven s workspace. The multifunctional display pane shows the temperature measured by the sample sensor. 2. Mount the sample sensor at the intended location of the sample to be dried in the device s workspace. The sample to be dried must not be placed in the oven s workspace for carrying out Eco calibration. 3. Set the temperature set value for the future drying process on the oven. Adjust the damper to position 3 so it is fully opened as would be the case during the drying process. Once the intended temperature set value has been reached, allow for a 2 hour wait period so the oven can establish a stable thermal state. 4. Choose the Eco option from the Settings -> Calibration menu and confirm with. Eco calibration will start now. Loading the Oven with the Sample to be Dried 1. Allow the oven to cool down. 2. Place the sample to be dried at the location in the workspace for which the most recent Eco calibration has been carried out. 3. Insert the sample sensor into the sample. Eco Convenience Program Flow 1. On the oven set the temperature set value for the drying process for which you have carried out the most recent Eco calibration. 2. Launch the Eco program as explained in Table 7-35 on page Choose the Eco option instead of P1 P10. None of the possible prompts will appear in that case. While the Eco convenience program is running, the multifunctional display pane reads Eco. 3. Once the oven s built-in controller has established the workspace temperature at the specified set value, monitoring for the sample temperature limit starts. 4. The drying process ends when the temperature limit is exceeded. The end of the program is indicated by an audible signal (5 beeps), an Eco End! message appears in the multifunctional display pane, and the oven turns off automatically Heratherm Thermo Scientific

93 Handling and Control Programming Instructions Table 7-34 Launching a Program Press to activate the menu bar, then use or :25AM Program Start to select the Program icon and press to confirm. In the selection screen shown at left, choose the preselected option Start by pressing. Stop Timer Prompt Upon Launching a Program When a timer is running, an additional Stop Timer prompt appears at this point (see Stopping an Off Timer Before It Expires on page 7-13). Choosing Yes aborts the timer and launches the selected program. Choosing No allows the timer to continue running. However, when a user program and a timer overlap, the program about to launch has priority over the timer, that is, the timer will be put on hold and execute only after the program has finished :25AM Start P1 P2 P3 P4 Eco :25AM Start Loops 1 In the list of existing programs (for example: P1...P4) shown at left, maintain the default selection P1 or choose another program using (or ). In either case, press to launch the program. If activated in the preferences for programs (see Activating / Deactivating the Program Cycle Prompt on page 7-31), the Loops prompt appears, asking for the desired number of program cycles (= Loops). Set the number of cycles by using or (default is 1 for one cycle) and confirm with :25AM Start Mode after End Off :25AM Start Mode after End Hold Settings If activated in the preferences for programs (see Changing the Mode after End on page 7-32), the Mode after End prompt will appear. You may use this dialog to select the desired mode of operation after a program has finished executing, that is, to have the oven turn off or go to hold mode when the program ends. Use or to choose the desired mode of operation and confirm the selection with. Thermo Scientific Heratherm 7-37

94 Handling and Control Programming Table 7-34 Launching a Program :05 P1 L1 3: The multifunctional display pane presents a progress bar for the selected program, similar to the example shown at left. The functions of the display elements are explained in Table 7-36 below. The Program icon in the menu bar is illuminated to indicate that a user program is running. The functions of the display elements (save for the date and time fields; see Table 7-2 on page 7-3) are explained in the following table. Table 7-35 Display Elements Active during Program Execution No. Function 1 These three fields show the following program execution information: - ID of the active program - for example: P1 for Program 1 - number of the current program cycle - for example, L1 for the first cycle (appears only when the prompt for the number of program cycles is active; see Activating / Deactivating the Program Cycle Prompt on page 7-31) - overall remaining time - for example: 3:02 Note The remaining time does not include any phases whose duration has been set to 00:00 in order to achieve rapid heat-up or cool-down of the oven. 2 This bar graph uses a variable number of bars to represent the progress of program execution: Three bars - for example, indicate step No. 3, four bars step No. 4 of a program, etc. Up to 10 bars may appear in this place, equivalent to a maximum of 10 steps (see above). 3 The Fan icon is illuminated to indicate that the fan has been turned on for the current step of the program. The fan speed level can be determined from the bar graph located directly above the icon (see Table 7-2 on page 7-3). 4 The Damper icon is illuminated to indicate that the fan damper has been opened for the current step of the program. The damper position can be determined from the bar graph located directly above the icon (see Table 7-2 on page 7-3). 5 The Program icon in the menu bar is illuminated to indicate that a user program is running Heratherm Thermo Scientific

95 Handling and Control Programming Table 7-36 Abborting a Program While a program is running (as indicated by the flashing bar, program number and remaining time counter in the multifunctional display pane and the Program icon :05 P1 L1 3:02 illuminated in the menu bar) press or :07PM Stop Program? No Yes When the prompt shown at left appears in the multifunctional display pane, press to choose the Yes option and confirm the selection with. The display returns to its default mode. The Program icon in the menu bar will go out. Table 7-37 Creating a New Program Press to activate the menu bar, then use or to select the Program icon and press confirm. to :25AM Program Start In the selection screen that appears press to switch from the preselected option Start option to New, then confirm the selection with :25AM Program New :25AM New P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 In the following selection screen, maintain the default selection (for example: P4) or choose any other program from the list of free program memory slots (example at left shows free memory slots at P4...P10) using (or ). In either case press program. to start creating a new Thermo Scientific Heratherm 7-39

96 Handling and Control Programming Table 7-37 Creating a New Program New P4 A programming screen appears for the first step of the program, which is represented by a flashing empty bar. If the first step is supposed to last longer than an hour (up to 23 hours are supported), use to set the hour count for the duration of the first step and confirm your settings with. Then, set the minute count using (or press to accept zero minutes) and confirm your settings with. Setting the Duration of a Program Step By letting the duration of the step default to 00:00, you instruct the oven to heat up or cool down to the temperature set value as fast as possible. If you enter a time span, the oven will rather try to reach the set value along a continuously rising or falling ramp curve. For each step that involves a temperature change, the ramp is visually represented by a slanted top of the progress bar. The selection moves on to the settings pane Set, which will start flashing. Use to set the desired temperature set value and confirm your settings with. Note If you need to set up a program that involves a subsequent cool-down phase, you may want to consider programming the last step with a set temperature value of 0 C (32 F) to speed up cool-down. For details and instructions see Temperature Set Value on page 7-7. The selection moves on to the bar graph for the fan speed, which will start flashing. If you want the fan to run at more than 20% of its maximum speed for the duration of the current program step, use to set the desired fan speed level and confirm your settings with Heratherm Thermo Scientific

97 Handling and Control Programming Table 7-37 Creating a New Program The selection moves on to the bar graph for the damper, which will start flashing. If you want the damper to remain open for the duration of the current program step, use to select the desired damper position and confirm your settings with. New P4 Next New P4 Save The Next prompt appears in the multifunctional display pane. If you wish to create an additional program step, press the button. The display returns to the initial stage of program creation. Now, the second bar will be flashing, representing the second program step. If you do not wish to create an additional program step, press or to continue to the Save option, then press one more time to save the newly created program. The display returns to its default mode. The newly created program may be launched now, as described in Launching a Program on page Table 7-38 Deleting an Existing Program Press to activate the menu bar, then use or :25AM Program Start to select the Program icon and press confirm. In the selection screen shown at left, press switch to the Delete option. to to :25AM Program Delete Thermo Scientific Heratherm 7-41

98 Handling and Control Programming Table 7-38 Deleting an Existing Program :25AM Delete P1 P2 P3 P :25AM Delete P4 Yes No In the list of existing programs (for example: P1...P4; default selection is P1) shown at left, choose any program by pressing, then press to confirm the deletion. In the confirmation dialog for the deletion that appears, press to choose the Yes option (default selection is No), then press to have the deletion carried out. The display returns to its default mode. The program memory is free to accept a new or copied program (see Creating a New Program on page 7-39 and the procedure described below under Copying an Existing Program ). Table 7-39 Copying an Existing Program Press to activate the menu bar, then use or :25AM Program Start to select the Program icon and press confirm. In the selection screen shown at left, press switch to the Copy option. to to :25AM Program Copy :25AM Copy P1 P2 P3 P4 In the list of existing programs (for example: P1...P4; default selection is P1) shown at left, choose any program by pressing, then press to start copying Heratherm Thermo Scientific

99 Handling and Control Programming Table 7-39 Copying an Existing Program :25AM to P5 P6 P7 P8 P9 P :25AM Copy P1 --> P5 Yes No In the list of free program memory slots in the selection screen that appears (for example: P5...P10) press to choose a target slot for copying, then press to confirm the copy target. In the confirmation dialog for copying that appears, press to choose the Yes option (default selection is No), then press to confirm copying. The display returns to its default mode. The program you have just copied to the targeted memory slot may be edited now to adapt it to specific needs (see the procedure described below under Editing an Existing Program ). Table 7-40 Editing an Existing Program Press to activate the menu bar, then use or :25AM Program Start to select the Program icon and press confirm. In the selection screen shown at left, press switch to the Edit option. to to :25AM Program Edit :25AM Edit P1 P2 P3 P4 In the list of existing programs (for example: P1...P4; default selection is P1) shown at left, choose the program you wish to edit by pressing, then press to confirm the selection. Thermo Scientific Heratherm 7-43

100 Handling and Control Programming Table 7-40 Editing an Existing Program In the programming screen that appears, choose the Edit P4 Edit P4 first program step for editing by pressing or use to navigate to another program step and select it by pressing. Edit the duration, temperature set value, fan speed and damper position as explained under Creating a New Program on page When you are done with the last edit, you may press either to go to the next program step or to cycle through all settings for the step you have just edited. If this is the last step, you will be presented with the following prompt for saving your changes. Save? No Yes When prompted for saving your changes, press choose the Yes option (default selection is No), then to press to confirm saving. After confirming and saving, the multifunctional display pane will return to the flashing bar for the current program step Heratherm Thermo Scientific

101 8 Shut-down This chapter provides instructions for shutting the oven down for prolonged periods of time, that is, at least for several days in a row. Shutting the Oven Down 1. Remove the containers with the samples and all accessories from the work space. 2. Turn the oven off using the control panel. 3. Unplug the power cord and secure it against accidental reconnection. 4. Until the oven is shut down, the work space must be continuously ventilated. Leave the door open and secure it against accidental closure. Thermo Scientific Heratherm 8-1

102 Shut-down Shutting the Oven Down 8-2 Heratherm Thermo Scientific

103 9 Cleaning and Disinfection Cleaning Incompatible cleaners Some oven components are made of plastics. Solvents may attack plastics. Strong acids or alkaline solutions may cause embrittlement of plastics. Moisture-sensitive components Do not spray cleaning agent onto the control panel and the control box at the rear of the oven. When wiping the oven clean, always make sure that no moisture enters into these components. Wipe the display window down with a slightly dampened cloth, then wipe dry with a rag made of 100% microfiber. Cleaning exterior surfaces Remove dirt residues and depositions thoroughly using a solution of lukewarm water and commercial detergent. Wipe the surfaces clean using a clean cloth and clear water. Then, wipe the surfaces dry using a clean cloth. Wipe / Spray Disinfection The manual wipe and spray disinfection is the following process: predisinfection, cleaning as appropriate for the current application. Thermo Scientific Heratherm 9-1

104 Cleaning and Disinfection Wipe / Spray Disinfection Alcoholic disinfectants! Disinfectants having an alcohol content of more than 10% may form, in combination with air, easily combustible and explosive gas mixtures. When using such disinfectants, avoid open flames or exposure to excessive heat during the entire disinfection process! Use such disinfectants only in adequately ventilated rooms. After the disinfectant has been allowed to react, wipe the cleaned oven components thoroughly dry. Observe safety regulations to avoid fire and/or explosion hazard caused by alcohol-containing disinfectants. Chloride-containing disinfectants! Chloride-containing disinfectants can corrode stainless steel and galvanized metal surfaces. Use only disinfectants that do not affect stainless steel and galvanized metal surfaces! Preparing the manual wipe/spray disinfection Electric shock Touching live electrical components may cause a lethal electric shock. Before connecting the oven to the power supply, check the plug and power cord for damage. Do not use damaged cables for connecting the oven to the power source! 9-2 Heratherm Thermo Scientific

105 Cleaning and Disinfection Wipe / Spray Disinfection Health hazard The surfaces of the work space may be contaminated. Contact with contaminated cleaning liquids may cause infections. Disinfectants may contain harmful substances. When cleaning and disinfecting, always observe the safety instructions and hygiene guidelines! Wear safety gloves. Wear safety goggles. Wear mouth and respiratory system protection gear to protect your mucous membranes. Observe the safety instructions of the disinfectant s manufacturer and the hygiene supervisor. Predisinfection 1. Remove all samples from the work space and store them in a safe place. 2. Spray disinfectant onto the surfaces of the work space and of the accessories or wipe the surfaces clean using disinfectant. 3. Allow time for the disinfectant to act as specified by the manufacturer. Disinfecting hard-to-reach components Spray the sensor and other hard-to-reach components with disinfectant! Thermo Scientific Heratherm 9-3

106 Cleaning and Disinfection Wipe / Spray Disinfection 9-4 Heratherm Thermo Scientific

107 10 Maintenance Regular maintenance is mission-critical to avoid malfunctions due to ageing and wear. Failure to perform maintenance on a regular basis may result in: deviations in heating performance damage to samples loss of control over temperature distribution throughout the work space Inspections and checks To ensure the operational performance and safety of the oven, their functions and the components listed below must be checked at regular intervals. Regular Checks Check the oven for overall cleanliness and remove any debris from previous processes. To avoid operation without an appropriate fresh air supply, check the air filter (optional) in the air inlet for contamination. Weekly Inspection Check integrity and proper seating of the door seal. Note If the oven is operated above a certain temperature limit (see Replacing the Door Seal on page 10-3), the door seal must be replaced after three (3) months (keep a unit logbook). Swap air filter cartridge (optional) in air inlet. Perform functional check of the control panel and of the oven s built-in controller. Perform electrical safety check in accordance with the relevant national regulations. Functional check If safety devices were removed or disabled for inspections, the oven must not be operated before the safety devices have been reinstalled and checked for their correct function. Thermo Scientific Heratherm 10-1

108 Maintenance Service Intervals Spare Parts and User Modifications To avoid major malfunctions of the oven and associated safety hazards that may result in death, serious injuries, or damage to the oven and other equipment, use spare parts approved by Thermo Electron LED GmbH only. Third-party spares without approval void the limited warranty. Do not modify the oven in any way without obtaining the prior written authorization from Thermo Electron LED GmbH. Unauthorized modifications may compromise operational safety and give rise to hazards that may result in death, serious injuries, or damage to the oven and other equipment. Service Intervals During ongoing operation, the following service work must be performed: 3-monthly service Perform the comparative temperature measurement outlined in the following section. Annual service Have the oven inspected and serviced by an authorized Technical Service agent. Service contract Thermo Electron LED GmbH offer a product-specific service contract comprising all necessary tests and service work. Preparing Temperature Calibration To determine the exact measured value of the oven s integral temperature sensor, a temperature comparison measurement must be performed every three months. If a major temperature deviation is found during this check, temperature calibration is required. During this process, the temperature controller of the oven is set to the value measured during the temperature comparison measurement. Use a calibrated measuring instrument with an accuracy of < ± 0.1 C (32.2 F) for this test Heratherm Thermo Scientific

109 Maintenance Comparison Measurement Procedure To minimize temperature variations during the measurement, put the measuring sensor in an isothermal container (such as a bowl filled with glycerol) before placing it in the work space. Use the center of the work space as the reference location for the comparison measurement. Isothermal Container Do not use a container filled with water as an isothermal container because the evaporation of water will result in a lower temperature reading. Comparison Measurement Procedure 1. Turn the oven on using the power switch. 2. Set the temperature set value and allow the oven to stabilize. This may take several hours. 3. Place the measuring device in the center area of the wire-mesh shelf in the center area of the work space. Route the connecting cable through the air exit in the rear panel of the oven. 4. Close the doors. 5. Wait until the temperature value displayed on the measuring instrument has stabilized. 6. In case the temperature readings on the measuring device and the oven s display do not match exactly, use the temperature reading from the measuring device to calibrate temperature control, as explained in Entering the Calibration Reference Temperature for the Sample Sensor Manually on page Temperature Calibration Procedure For detailed instructions on how to perform a manual or automatic temperature calibration, please refer to the instructions in the section Calibration on page Excessive Work Space Temperatures Excessive work space temperatures subsequent to a calibration run can be reduced by leaving the door open for approx. 30 seconds. Replacing the Door Seal The door seal of the outer door is located in the retaining slot. The door seal should be inspected for any signs embrittlement every six months when the oven has been used at maximum temperatures of up to 250 C / 482 F or every three months when the oven has been used at maximum temperatures beyond 250 C / 482 F. Thermo Scientific Heratherm 10-3

110 Maintenance Replacing the Power Cord No tools are required to replace the seal. Figure 10-1 Door seal replacement (example showing OMH Series oven) 1. Pull the seal out of the guide slot. 2. Starting on the hinge side of the door, position the seam of the new seal at the location indicated by the arrow in Figure 10-1 above. 3. Gently press the seal into the slot, working around the circumference of the door. In doing so, be careful not to stretch the seal. 4. Make sure that the retaining rail taper is positioned correctly in the slot and that the seal is flush with the door frame. Replacing the Power Cord When the device s power cord is damaged, it must be replaced with an original spare part. Using a standard power cord with a lower temperature withstand class is prohibited. Returns for Repair Prior to returning any materials, please contact our Customer Service Department for a Return Materials Authorization number (RMA). Material returned without an RMA number will be refused Heratherm Thermo Scientific

111 Maintenance Returns for Repair Contamination hazard The oven may have been used for treating and processing infectious substances, which may have caused contamination of the oven and its components. Prior to return shipment, it is therefore mandatory that all oven components be properly decontaminated. Clean the oven components thoroughly, then disinfect or decontaminate them (depending on application). Fill in and attach a safety declaration with details on decontamination activities performed to the items that are to be repaired. Thermo Scientific Heratherm 10-5

112 Maintenance Returns for Repair 10-6 Heratherm Thermo Scientific

113 11 Disposal Contamination hazard The oven may have been used for treating and processing infectious substances, which may have caused contamination of the oven and its components. Prior to disposal, it is therefore mandatory that all oven components be properly decontaminated. Clean the oven components thoroughly, then disinfect or decontaminate them (depending on application). Attach a declaration of decontamination with details on decontamination activities performed to the items that are to be disposed of. Overview of Materials Used Component Material Thermal insulation components Glass wool Printed circuit boards Coated electrical components contain various plastics materials. Components mounted on circuit boards containing epoxy resin bonder. Plastic components, general see material labelling Exterior housing Galvanized steel sheet, painted Oven rear panel Galvanized steel sheet Outer door Galvanized steel sheet, painted Door inner panel OMH and OGH: stainless steel Control panel and display window Polyethylene protective foil Heater Stainless steel-sheathed resistance heater wires Work space containers Stainless steel Wire-mesh shelves Steel, chrome-plated Thermo Scientific Heratherm 11-1

114 Disposal WEEE Conformity Component Door frame seal Fan wheel Cables Packaging Material Silicone Stainless steel (OMH Series and OMH-S Series only) Plastic-sheathed stranded copper wire Corrugated board, polyethylene film, and styrofoam, chemically untreated wood WEEE Conformity This product is subject to the regulations of the EU Waste Electrical & Electronic Equipment (WEEE) Directive 2002/96. It is marked by the symbol shown below. Thermo Electron has entered into agreements with recycling and disposal companies in all EU Member States for the recycling and disposal of this oven. For information on how Thermo Electron secures conformity with this directive, on recycling and disposal companies in your country and on the products of Thermo Electron, which fall under the RoHS Directive (Restriction of the use of certain hazardous substances in electrical and electronic equipment), please visit the website Heratherm Thermo Scientific

115 12 Error Codes Table 12-1 below lists the error messages that may appear in the control panel display window (see Error Log on page 7-21) and provides instructions for clearing such alarms. Table 12-1 Heratherm Oven Error Codes Error Message & Code Root Cause Alarm Response Alarm Clearing Instructions * Door Open Error (E001) The door switch (OGH-S Series and OMH-S Series only) has triggered an alarm because the door has been open for more than 10 minutes. Audible alarm activated, alarm relay energized, message shown on display. Close the door. Display Error (E002) Display communication error. The built-in controller was unable to restore communication with the control panel. Audible alarm activated, alarm relay energized, message shown on display. Reset after 30 s. Power cycle the device by unplugging, then reconnecting the power cord. If this doesn't solve the problem, call service. Mirrored Parameter Loaded (E003) The controller was unable to read the user-specific settings and had to resort to an emergency parameter set held in mirrored storage. Alarm relay energized. Fallback to mirrored parameter storage. Device continues to run without loss of functionality, including user-specific settings. Check the latest settings, for example the set value. Factory Parameter Loaded (E004) The controller was unable to read the mirrored parameter set and had to resort to factory-preset parameters. Fallback to factory-preset parameters. Audible alarm activated, alarm relay energized, message shown on display. User-specific settings may be lost - for example, the temperature display unit preference, or user programs. Acknowledge by pressing. Re-enter customer-specific settings. Default Parameter Loaded (E005) The controller was unable to read the factory-preset parameters.and had to resort to default settings Fallback to default parameters. User-specific settings will be unavailable. Audible alarm activated, alarm relay energized, message shown on display. The device is completely inoperative. Call service. Power Down Error (E007) Power has been cut off (power outage) while the device was running. Audible alarm activated, alarm relay energized, message shown on display. Check the power supply. Power up then device, then acknowledge the alarm by pressing. Thermo Scientific Heratherm 12-1

116 Error Codes Table 12-1 Heratherm Oven Error Codes Error Message & Code Root Cause Alarm Response Alarm Clearing Instructions * Fan Error (E009) Damper Error (E010) Config Error (E012) Fan speed out of range. (OMH Series and OMH-S Series only) Undefined damper position. General device configuration error. Audible alarm activated, alarm relay energized, message shown on display. Heater disabled by controller. Audible alarm activated, alarm relay energized, message shown on display. Audible alarm activated, alarm relay energized, message shown on display. The device is completely inoperative. OTP error (E013) Klixon contact not closed. Overtemperature Protection fault. Audible alarm activated, alarm relay energized, message shown on display. Bridging across Klixon contact has failed (Klixon has tripped.) Sensor Error (E100) Temperature Too High (E101) Temperature Too Low (E102) (OGH-S and OMH-S only) Temperature Not Plausible (E103) Process sensor damaged. The actual measured value is out of range. Actual measured value exceeds permissible range. The Triac is defective. Actual measured value falls short of permissible range. Only on devices equipped with a door switch. The difference between the control and reference sensors exceeds the maximum permissible deviation, rendering the measurement implausible. Audible alarm activated, alarm relay energized, message shown on display. Control transferred to reference sensor. If both sensors are defective, disable all control circuits. Process protection activated, control continues on set value. Audible alarm activated, alarm relay energized, E101 message shown on display. Audible alarm activated, alarm relay energized, message shown on display. Temperature control continued. Device uses the sensor that indicates the higher temperature for servo control. Audible alarm activated, alarm relay energized, message shown on display. Error can be acknowledged and doesn t reset. Acknowledge by pressing. Increase or decrease fan speed on control panel. If this doesn't solve the problem, call service. Acknowledge by pressing. Adjust damper position on control panel. If this doesn't solve the problem, call service. Call service. Power cycle the device by unplugging, then reconnecting the power cord. If this doesn't solve the problem, call service. Call service. Call service. Check the AC mains supply for an undervoltage condition and have the problem remedied, if necessary. If this is not the root cause of the problem, call service. If the problem does not go away, call service Heratherm Thermo Scientific

117 Error Codes Table 12-1 Heratherm Oven Error Codes Error Message & Code Root Cause Alarm Response Alarm Clearing Instructions * Calibration Value Too High (E104)) The calibration reference value calculated on the basis of the user input falls short of the upper limit for calibration references. Fallback to previous calibration reference. Audible alarm activated, alarm relay energized, message shown on display. Check the external reference sensor for proper function and replace, if necessary. If this does not solve the problem, call service. Calibration Value Too low (E105) The calibration reference value calculated on the basis of the user input exceeds the lower limit for calibration references. Fall back to previous calibration reference. Audible alarm activated, alarm relay energized, message shown on display. Check the external reference sensor for proper function and replace, if necessary. If this does not solve the problem, call service. Constant Sensor Signal (E106) None of the decimal places of the A/D-converter output for the process sensor has changed over a specific time period. Control transferred to reference sensor, audible alarm activated, alarm relay energized, message shown on display. If both sensors are defective, all control circuits will be disabled. Call service. Constant Reference Sensor Signal (E107) None of the decimal places of the A/D-converter output for the reference sensor has changed over a specific time period. Control continues on process sensor, audible alarm activated, alarm relay energized, message shown on display. If both sensors are defective, all control circuits will be disabled. Call service. Constant Sample Sensor Signal (E108) None of the decimal places of the A/D-converter output for the sample sensor has changed over a specific time period. Audible alarm activated, alarm relay energized, message shown on display. Call service. Heating Relay Error (E109) The voltage measurement has indicated a defect in the heater circuit relay. Device completely inoperative, audible alarm activated, alarm relay energized, message shown on display. Be sure to pull the power plug and disconnect the device from the AC mains. Call service. Heating Triac Error (E110) The voltage measurement has indicated a defect in the triac Audible alarm activated, alarm relay energized, message shown on display. Overheat protection activated to prevent destruction of the samples. Audible alarm returns upon acknowledgement. Call service. Thermo Scientific Heratherm 12-3

118 Error Codes Table 12-1 Heratherm Oven Error Codes Error Message & Code Root Cause Alarm Response Alarm Clearing Instructions * Temperature Too High (E111) The actual measured value exceeds the upper limit of the permissible error range. Audible alarm activated, alarm relay energized, message shown on display. Heater turned off until upper limit of hysteresis is recovered. Servo control operations continue. Alarm can be acknowledged, and goes away when the difference between the actual and set values ceases to exist. Note: This error does not indicate a defective triac. Open the door to speed up cool-down. Check whether the device was loaded with a hot object, If so, remove. If this doesn t solve the problem, call service. Sensor Error (E112) The measured actual value is out of range. Audible alarm activated, alarm relay energized, message shown on display. Control continues on process sensor. If both sensors are defective, all control circuits will be disabled. Check whether device was loaded with an unsuitable object. If error does not go away, call service. Sensor Error (E113) Sample sensor damaged. The actual measured value is out of range. Audible alarm activated, alarm relay energized, message shown on display. Call service. ADC Error (E114) A/D converter does not supply a plausible output. Measurement across reference resistor R403 has failed. ADC converter may be defective. Audible alarm activated, alarm relay energized, message shown on display. All control circuits disabled. Call Service. Watchdog error (E115) Watchdog test failed on power-up. Audible alarm activated, alarm relay energized, message shown on display. Call service. * Clearing should mute the audible alarm, de-energize the alarm relay, and clear the message from the control panel display Heratherm Thermo Scientific

119 13 Technical Data Table 13-1 Technical Data - OGH and OGH-S Series Parameter Unit OGH 60 OGH 100 OGH 180 OGH-S 60 OGH-S 100 OGH-S 180 Process Temperature deviation from set value at 150 C (302 F), spatial. Max. value/ Typical value Temperature deviation from set value at 150 C (302 F), over time, Max. value/typical value Heat-up time (work space unoccupied, from 25 C (77 F) to 98% of set temperature of 150 C/302 F) Recovery time (work space unoccupied, door open for 30 s, to set temperature). Max.value/ Typical value Heat-up time with boost heat active (to set temperature of 300 C/572 F) Max.value/Typical value Heat dissipation to environment (at set temperature of 150 C (302 F) and room temperature of 25 C/ 77 F) Max. air change at 150 C / 302 F K ±3 / ±2.5 ±3 / ±2.5 ±3.5 / ±2.9 ±3 / ±2.5 ±3 / ±2.5 ±3.5 / ±2.9 K ±0.3 / ±0.3 ±0.3 / ±0.3 ±0.4 / ±0.3 ±0.3 / ±0.3 ±0.3 / ±0.3 ±0.4 / ±0.3 min 25/20 25/20 25/20 25/20 25/20 25/20 min 6/9 6/10 6/9 6/9 6/10 6/9 min W 170±10% 210±10% 290±10% 170±10% 210±10% 290±10% h Overall dimensions Height mm/in 720/ / / / / / 36.2 Width mm/in 530/ / / / / / 25.2 Depth mm/in 565/ / / / / / 29.1 Thermo Scientific Heratherm 13-1

120 Technical Data Table 13-1 Technical Data - OGH and OGH-S Series Parameter Unit OGH 60 OGH 100 OGH 180 OGH-S 60 OGH-S 100 OGH-S 180 Overall weight kg/lbs 44/97 55/121 69/152 44/97 55/121 69/152 Loading capacity Loading capacity per shelf kg/lbs 25/55 25/55 Max. overall loading capacity per device kg/lbs 50/110 50/110 75/165 50/110 50/110 75/165 Electrical data Power rating W Maximum current A 14,4 14,0 14,0 14,4 14,0 14,0 Earthing system (e.g. 1/N/PE) 1/N/PE 1/N/PE 1/N/PE 1/N/PE 1/N/PE 1/N/PE Power line frequency Hz Power line voltage +/- 10 % V / /240 IP protection system IP 20 IP 20 Protection class I I Overvoltage category as per IEC II II Device fusing, building side A Device fusing, on PCB A 2 x 16 2 x 16 Environmental conditions Min. ambient temperature C/ F 18/65 18/65 Max. ambient temperature C/ F 32/90 32/90 Max. humidity in service, non condensing % r.f./ % r.h. 80, non condensing 80, non condensing Min. storage temperature C/ F 20/68 20/68 Max. storage temperature C/ F 60/140 60/140 Max. humidity in storage, non condensing Post-transport acclimation time % r.f./ % r.h. 90, non condensing 90, non condensing h 2 2 Noise level db(a) Degree of pollution as per IEC EN Site conditions Maximum altitude above sea level 2 2 m/y ASL 2000/ /2187 Minimum side clearance mm/in 50/2 50/2 Minimum front clearance mm/in 590 / / / / / / 32 Minimum back wall clearance mm/in 80/3.2 80/ Heratherm Thermo Scientific

121 Technical Data Table 13-1 Technical Data - OGH and OGH-S Series Parameter Unit OGH 60 OGH 100 OGH 180 OGH-S 60 OGH-S 100 OGH-S 180 Minimum bottom clearance mm/in 200/8 200/8 Minimum top clearance mm/in 300/12 300/12 Table 13-2 Technical Data - OMH-S and OMH Series Parameter Unit OMH 60 OMH 100 OMH180 OMH-S 60 OMH-S 100 OMH-S 180 Process Temperature deviation from set value at 150 C/302 F, spatial. Max.value/Typical value Temperature deviation from set value at 150 C/302 F, over time. Max.value/ Typical value Heat-up time (work space unoccupied, from 25 C/ 77 F to 98% of set temperature of 150 C/ 302 F). Max.value/Typical value Recovery time (work space unoccupied, door open for 30 s, to set temperature) Max.value/Typical value Heat-up time with boost heat active (to set temperature of 300 C/ 572 F) Heat dissipation to environment (at set temperature of 150 C/302 F and room temperature of 25 C/77 F) Max. air change at 150 C/ 302 F K ±2 / ±1.5 ±1.5 / ±1.3 ±2 / ±1.3 ±2 / ±1.5 ±1.5 / ±1.3 ±2 / ±1.5 K ±0.25 / ±0.2 ±0.25 / ±0.2 ±0.25 / ±0.2 ±0.25 / ±0.2 ±0.25 / ±0.2 ±0.25 / ±0.2 min 20/18 20/14 20/18 20/18 20/14 20 / 18 min 3/4 3/4 4/5 3/4 3/4 4/5 min W 275±10% 389±10% 448±10% 275±10% 389±10% 448±10% h Overall dimensions Height mm/in 720/ / / / / / 36.2 Width mm/in 530/ / / / / / 25.2 Depth mm/in 565/ / / / / / 29.1 Overall weight kg/lbs 44/97 55/121 69/152 44/97 55/121 69/152 Loading capacity Thermo Scientific Heratherm 13-3

122 Technical Data Table 13-2 Technical Data - OMH-S and OMH Series Parameter Unit OMH 60 OMH 100 OMH180 OMH-S 60 OMH-S 100 OMH-S 180 Loading capacity per shelf kg/lbs 25/55 25/55 Max. overall loading capacity per device kg/lbs 50/110 50/110 75/165 50/110 50/110 75/165 Electrical data Power rating W Maximum current A 12,0 14,0 14,0 12,0 14,0 14,0 Earthing system (e.g. 1/N/PE) 1/N/PE 1/N/PE 1/N/PE 1/N/PE 1/N/PE 1/N/PE Power line frequency Hz Power line voltage +/- 10 % V / /240 IP protection system IP 20 IP 20 Protection class I I Overvoltage category to IEC II II Device fusing, building side A Device fusing, on PCB A 2 x 16 2 x 16 Environmental conditions Min. ambient temperature C/ F 18/65 18/65 Max. ambient temperature C/ F 32/90 32/90 Max. humidity in service, non condensing % r.f./ % r.h. 80, non condensing 80, non condensing Min. storage temperature C/ F 20/68 20/68 Max. storage temperature C/ F 60/140 60/140 Max. humidity in storage, non condensing Post-transport acclimation time % r.f./ % r.h. 90, non condensing 90, non condensing h 2 2 Noise level db(a) Degree of pollution to IEC EN Site conditions Maximum altitude above sea level 2 2 m/y ASL 2000/ /2187 Minimum side clearance mm/in 50/2 50/2 Minimum front clearance mm/in 590 / 23,2 690 / 27,2 814 / / 23,2 690 / 27,2 814 / 32 Minimum back wall clearance mm/in 80/3.2 80/3.2 Minimum bottom clearance mm/in 200/8 200/8 Minimum top clearance mm/in 300/12 300/ Heratherm Thermo Scientific

123 14 Spare Parts and Accessories Material No. Description Stacking adapter Heratherm 60L Stacking adapter Heratherm 100L Stacking adapter Heratherm 180L Outer door for Heratherm IGS 60, IMH 60, IMH-S 60, OMS 60, OMH 60, OMH-S 60, OGS 60, OGH 60 and OGH-S 60 with a door stop on the left side Outer door for Heratherm IGS 100, IMH 100, IMH-S 100, OMS 100, OMH 100, OMH-S 100, OGS 100, OGH 100 and OGH-S 100 with a door stop on the left side Outer door for Heratherm IGS 180, IMH 180, IMH-S 180, OMS 180, OMH 180, OMH-S 180, OGS 180, OGH 180 and OGH-S 180 with a door stop on the left side Outer door for Heratherm IGS 60, IMH 60, IMH-S 60, OMS 60, OMH 60, OMH-S 60, OGS 60, OGH 60 and OGH-S 60 with a door stop on the right side Staple feet Heratherm incubators and heating & drying ovens Kit door seal for Heratherm 60L Kit door seal for Heratherm 100L Kit door seal for Heratherm 180L Kit door clips for Heratherm 60L / 100L / 180 L Levelling feet for Heratherm incubators and heating & drying ovens Kit door handle right Heratherm incubators and heating & drying ovens Kit door handle left Heratherm incubators and heating & drying ovens Kit door handle with lock right Heratherm incubators and heating & drying ovens Kit door handle with lock left Heratherm incubators and heating & drying ovens Temperature sensor for Heratherm heating & drying ovens Upper door hinge for Heratherm incubators and heating & drying ovens Lower door hinge for Heratherm incubators and heating & drying ovens Thermo Scientific Heratherm 14-1

124 Spare Parts and Accessories Material No. Description Outer door for Heratherm IGS 100, IMH 100, IMH-S 100, OMS 100, OMH 100, OMH-S 100, OGS 100, OGH 100 and OGH-S 100 with a door stop on the right side Outer door for Heratherm IGS 180, IMH 180, IMH-S 180, OMS 180, OMH 180, OMH-S 180, OGS 180, OGH 180 and OGH-S 180 with a door stop on the right side Kit operating panel Heratherm General Protocol incubators and heating & drying ovens Kit operating panel Heratherm Advanced Protocol and Advanced Protocol Security incubators and heating & drying ovens Kit electronic insert Heratherm General Protocol incubators and heating & drying ovens without main board fan Kit electronic insert Heratherm Advanced Protocol and Advanced Protocol Security incubators and heating & drying ovens without main board fan Mainboard cable for Heratherm incubators and heating & drying ovens Door switch for the right side of Heratherm incubators and heating & drying ovens Door switch for the left side of Heratherm incubators and heating & drying oven Temperatur limiter for OMH, OMH-S, OGH, OGH-S Door hook catch for Heratherm incubators and heating & drying ovens with a door stop on the right side Door hook catch for Heratherm incubators and heating & drying ovens with a door stop on the left side Magnetic door hook catch for Heratherm incubators and heating & drying ovens with a door stop on the right side Magnetic door hook catch for Heratherm incubators and heating & drying ovens with a door stop on the left sid Heating coils for Heratherm OGS 60, OGH 60, OGH-S 60 at a voltage of 120 V Heating coils for Heratherm OGS 60, OGH 60, OGH-S 60 at a voltage of 230 V Heating coils for Heratherm OGS 100, OGH 100, OGH-S 100 at a voltage between 208 and 240 V Heating coils for Heratherm OGS 180, OGH 180, OGH-S 180 at a voltage between 208 and 240 V Heating coils for Heratherm OMS 60, OMH 60, OMH-S 60 at a voltage of 120 V Kit fan system Heratherm OMS 60, 120 V Kit fan system Heratherm OMS 100 and OMS 180, V 14-2 Heratherm Thermo Scientific

125 Spare Parts and Accessories Material No. Description Kit fan system Heratherm IMH 60 IMH-S 60, OMH 60 and OMH-S 60, IMH 100, IMH-S 100, IMH 180 and OMH-S 180, 120 V, Kit fan system Heratherm OMH 100, OMH-S 100, IMH 180, IMH-S 100 and OMH 180, V Kit fan system Heratherm OMS 60, 230 V Kit fan system Heratherm OMS 100 and OMS 180, 230 V Heating coils for Heratherm OMS 60, OMH 60, OMH-S 60 at a voltage of 230 V Heating coils for Heratherm OMS 100, OMH 100, OMH-S 100, OMS 180, OMH 180, OMH-S 180 at a voltage between 208 and 240 V Circulation fan OMH / OMH-S D = 180 mm (7.1 inch), H = 28 mm (1.1 inch) Door window seal for Heratherm heating and drying ovens Kit fan system Heratherm IMH 60 IMH-S 60, OMH 60 and OMH-S 60, IMH 100, IMH-S 100, IMH 180 and OMH-S 180, 230 V Kit fan system Heratherm OMH 100, OMH-S 100, IMH 180, IMH-S 100 and OMH 180, 230 V Mechanical air inlet slider for Heratherm OMS 60 and OGS Mechanical air inlet slider for Heratherm OMS 100, OGS 100, OMS 180 and OGS Kit electrical air flap Heratherm Advanced Protocol and Advanced Protocol Security ovens Fresh air filter for OMH, OGH, OMH-S, OGH-S Fresh air filter OGH / OGH-S / OMH / OMH-S Support stand with castors for Heratherm 60L Support stand with castors for Heratherm 100L Support stand with castors for Heratherm 180L Wire mesh shelf OGS 60 / OGH 60 / OGH-S 60, including 2 shelf supports Wire mesh shelf OGS 100 / OGH 100 / OGH-S 100, including 2 shelf supports Wire mesh shelf OGS 180 / OGH 180 / OGH-S 180, including 2 shelf supports Wire mesh shelf OMS 60/100/180 / OMH 60/100/180 / OMH 60/100/180-S, including 2 shelf supports Sample sensor for OGH-S 60 / OGH-S 100 / OGH-S 180 / OMH-S 60 / OMH-S 100 / OMH-S Stainless steel perforated shelf IMH 60 / IMH 60-S / OMH 60 / OMH 60-S/OMS 60/100/180, including 2 shelf supports Thermo Scientific Heratherm 14-3

126 Spare Parts and Accessories Material No. Description Stainless steel perforated shelf IMH 100 / IMH 100-S / OMH 100 / OMH 100-S/OMS 60/100/180, including 2 shelf supports Stainless steel perforated shelf IMH 180 / IMH 180-S / OMH 180 / OMH 180-S/OMS 60/100/180, including 2 shelf supports Retaining springs for Heratherm incubators and heating & drying ovens Support rail for Heratherm IGS 60, IMH 60, IMH-S 60, OMS 60, OMH 60, OMH-S Support rail for Heratherm IGS 100, IMH 100, IMH-S 100, OMS 100, OMH 100, OMH-S Support rail for Heratherm IGS 180, IMH 180, IMH-S 180, OMS 180, OMH 180, OMH-S Stainless steel perforated shelf OGS 60 / OGH 60 / OGH-S 60, including 2 shelf supports Stainless steel perforated shelf OGS 100 / OGH 100 / OGH-S 100, including 2 shelf supports Stainless steel perforated shelf OGS 180 / OGH 180 / OGH-S 180, including 2 shelf supports Main board cooling fan Heratherm Advanced Protocol and Advanced Protocol Security heating & drying ovens Sample sensor connection for Heratherm incubators and heating & drying ovens Kit window bulbs Heratherm heating & drying ovens Reinforced wire mesh shelf OGS 180 / OGH 180 / OGH 180-S Reinforced wire mesh shelf OMS 180 / OMH 180 / OMH 180-S Kit hot air flexible tube for Heratherm built-in units Fibre glass pads Ø 20 mm (0.8 inch) Fibre glass pads Ø 50 mm (2 inch) 14-4 Heratherm Thermo Scientific

127 15 Device Log Oven type: Part number: Serial number: Service number: Location Operator s note: Work carried out Notes Date Signature Thermo Scientific Heratherm 15-1

128 Device Log 15-2 Heratherm Thermo Scientific

129 16 Contact Overview of Thermo Fisher International Sales Organization Postal address USA: Thermo Scientific 275 Aiken Road Asheville, NC USA Enquiries from USA/Canada Sales: Service Enquiries from Latin America Sales: Service: Enquiries from Asia: China Sales: Service: Toll free Support Mobile or India Sales: Service: Toll free or Japan Sales: Service: Enquiries from the Rest of Asia/Australia/New Zealand Sales: Service: Enquiries from Countries not listed / Rest of EMEA Sales: or Service: Thermo Scientific Heratherm 16-1

130 Contact Enquiries from Europe: Austria Sales: Service: Belgium Sales: Service: Finland/Nordic/Baltic countries Sales: Service: France Sales: Service: Germany: Postal Address Germany: Thermo Electron LED GmbH Robert-Bosch-Straße 1 D Langenselbold Phone Sales Toll free or Service Toll free or info.labequipment.de@thermofisher.com Italy Sales Service Netherlands Sales Service Russia/CIS Sales Service Spain/Portugal Sales Service Switzerland Service UK/Ireland Service Sales Heratherm Thermo Scientific

131 Contact Thermo Scientific Heratherm 16-3

132 Contact 16-4 Heratherm Thermo Scientific